80976887 has 2 divisors, whose sum is σ = 80976888. Its totient is φ = 80976886.

The previous prime is 80976877. The next prime is 80976893. The reversal of 80976887 is 78867908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80976887 - 2⁴ = 80976871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80976827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40488443 + 40488444.

It is an arithmetic number, because the mean of its divisors is an integer number (40488444).

Almost surely, 2^80976887 is an apocalyptic number.

80976887 is a deficient number, since it is larger than the sum of its proper divisors (1).

80976887 is an equidigital number, since it uses as much as digits as its factorization.

80976887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 80976887 is about 8998.7158528314. The cubic root of 80976887 is about 432.6337132089.

The spelling of 80976887 in words is "eighty million, nine hundred seventy-six thousand, eight hundred eighty-seven".