80957538 has 12 divisors (see below), whose sum is σ = 175408038. Its totient is φ = 26985840.

The previous prime is 80957533. The next prime is 80957549. The reversal of 80957538 is 83575908.

It can be written as a sum of positive squares in only one way, i.e., 76685049 + 4272489 = 8757^2 + 2067^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80957493 and 80957502.

It is not an unprimeable number, because it can be changed into a prime (80957533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2248803 + ... + 2248838.

Almost surely, 2^80957538 is an apocalyptic number.

80957538 is an abundant number, since it is smaller than the sum of its proper divisors (94450500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80957538 is a wasteful number, since it uses less digits than its factorization.

80957538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497649 (or 4497646 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 80957538 is about 8997.6406907589. The cubic root of 80957538 is about 432.5992519495.

The spelling of 80957538 in words is "eighty million, nine hundred fifty-seven thousand, five hundred thirty-eight".