80957646 has 48 divisors (see below), whose sum is σ = 218694528. Its totient is φ = 21027600.

The previous prime is 80957629. The next prime is 80957663. The reversal of 80957646 is 64675908.

It is an interprime number because it is at equal distance from previous prime (80957629) and next prime (80957663).

It is a super-2 number, since 2×80957646² = 13108280891722632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 27820 + ... + 30591.

It is an arithmetic number, because the mean of its divisors is an integer number (4556136).

Almost surely, 2^80957646 is an apocalyptic number.

80957646 is an abundant number, since it is smaller than the sum of its proper divisors (137736882).

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

80957646 is a wasteful number, since it uses less digits than its factorization.

80957646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58437 (or 58434 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 80957646 is about 8997.6466923302. The cubic root of 80957646 is about 432.5994443166.

The spelling of 80957646 in words is "eighty million, nine hundred fifty-seven thousand, six hundred forty-six".