80596981 has 2 divisors, whose sum is σ = 80596982. Its totient is φ = 80596980.

The previous prime is 80596969. The next prime is 80596987. The reversal of 80596981 is 18969508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44488900 + 36108081 = 6670^2 + 6009^2 .

It is a cyclic number.

It is not a de Polignac number, because 80596981 - 2⁹ = 80596469 is a prime.

It is a super-2 number, since 2×80596981² = 12991746692628722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80596987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40298490 + 40298491.

It is an arithmetic number, because the mean of its divisors is an integer number (40298491).

Almost surely, 2^80596981 is an apocalyptic number.

It is an amenable number.

80596981 is a deficient number, since it is larger than the sum of its proper divisors (1).

80596981 is an equidigital number, since it uses as much as digits as its factorization.

80596981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 80596981 is about 8977.5821355196. The cubic root of 80596981 is about 431.9560801400.

The spelling of 80596981 in words is "eighty million, five hundred ninety-six thousand, nine hundred eighty-one".