80300749 has 4 divisors (see below), whose sum is σ = 80343900. Its totient is φ = 80257600.

The previous prime is 80300747. The next prime is 80300791. The reversal of 80300749 is 94700308.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66536649 + 13764100 = 8157^2 + 3710^2 .

It is a cyclic number.

It is not a de Polignac number, because 80300749 - 2¹ = 80300747 is a prime.

It is a super-2 number, since 2×80300749² = 12896420579922002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80300749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80300747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18652 + ... + 22549.

It is an arithmetic number, because the mean of its divisors is an integer number (20085975).

Almost surely, 2^80300749 is an apocalyptic number.

It is an amenable number.

80300749 is a deficient number, since it is larger than the sum of its proper divisors (43151).

80300749 is a wasteful number, since it uses less digits than its factorization.

80300749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43150.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 80300749 is about 8961.0685188765. The cubic root of 80300749 is about 431.4262161880.

The spelling of 80300749 in words is "eighty million, three hundred thousand, seven hundred forty-nine".