80967731 has 12 divisors (see below), whose sum is σ = 88889688. Its totient is φ = 73704384.

The previous prime is 80967713. The next prime is 80967737. The reversal of 80967731 is 13776908.

It is not a de Polignac number, because 80967731 - 2¹⁰ = 80966707 is a prime.

It is a super-2 number, since 2×80967731² = 13111546926576722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80967737) 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, 9056 + ... + 15618.

It is an arithmetic number, because the mean of its divisors is an integer number (7407474).

Almost surely, 2^80967731 is an apocalyptic number.

80967731 is a deficient number, since it is larger than the sum of its proper divisors (7921957).

80967731 is a wasteful number, since it uses less digits than its factorization.

80967731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662 (or 6649 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 80967731 is about 8998.2070991948. The cubic root of 80967731 is about 432.6174067305.

The spelling of 80967731 in words is "eighty million, nine hundred sixty-seven thousand, seven hundred thirty-one".