80499757 has 4 divisors (see below), whose sum is σ = 86692060. Its totient is φ = 74307456.

The previous prime is 80499707. The next prime is 80499781. The reversal of 80499757 is 75799408.

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 6728836 + 73770921 = 2594^2 + 8589^2 .

It is a cyclic number.

It is not a de Polignac number, because 80499757 - 2¹¹ = 80497709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80499757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80499707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3096132 + ... + 3096157.

It is an arithmetic number, because the mean of its divisors is an integer number (21673015).

Almost surely, 2^80499757 is an apocalyptic number.

It is an amenable number.

80499757 is a deficient number, since it is larger than the sum of its proper divisors (6192303).

80499757 is a wasteful number, since it uses less digits than its factorization.

80499757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192302.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 80499757 is about 8972.1656805924. The cubic root of 80499757 is about 431.7823209599.

The spelling of 80499757 in words is "eighty million, four hundred ninety-nine thousand, seven hundred fifty-seven".