80957943 has 12 divisors (see below), whose sum is σ = 127570248. Its totient is φ = 49065360.

The previous prime is 80957911. The next prime is 80957983. The reversal of 80957943 is 34975908.

It is not a de Polignac number, because 80957943 - 2⁵ = 80957911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80957983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408780 + ... + 408977.

It is an arithmetic number, because the mean of its divisors is an integer number (10630854).

Almost surely, 2^80957943 is an apocalyptic number.

80957943 is a deficient number, since it is larger than the sum of its proper divisors (46612305).

80957943 is a wasteful number, since it uses less digits than its factorization.

80957943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817774 (or 817771 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 80957943 is about 8997.6631966306. The cubic root of 80957943 is about 432.5999733252.

The spelling of 80957943 in words is "eighty million, nine hundred fifty-seven thousand, nine hundred forty-three".