80308849 has 4 divisors (see below), whose sum is σ = 80773236. Its totient is φ = 79844464.

The previous prime is 80308843. The next prime is 80308861. The reversal of 80308849 is 94880308.

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 40870449 + 39438400 = 6393^2 + 6280^2 .

It is a cyclic number.

It is not a de Polignac number, because 80308849 - 2⁷ = 80308721 is a prime.

It is a super-2 number, since 2×80308849² = 12899022455409602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80308843) 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, 231934 + ... + 232279.

It is an arithmetic number, because the mean of its divisors is an integer number (20193309).

Almost surely, 2^80308849 is an apocalyptic number.

It is an amenable number.

80308849 is a deficient number, since it is larger than the sum of its proper divisors (464387).

80308849 is a wasteful number, since it uses less digits than its factorization.

80308849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464386.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 80308849 is about 8961.5204625108. The cubic root of 80308849 is about 431.4407218014.

The spelling of 80308849 in words is "eighty million, three hundred eight thousand, eight hundred forty-nine".