80902417 has 2 divisors, whose sum is σ = 80902418. Its totient is φ = 80902416.

The previous prime is 80902391. The next prime is 80902421. The reversal of 80902417 is 71420908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71757841 + 9144576 = 8471^2 + 3024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80902417 is a prime.

It is not a weakly prime, because it can be changed into another prime (80902447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40451208 + 40451209.

It is an arithmetic number, because the mean of its divisors is an integer number (40451209).

Almost surely, 2^80902417 is an apocalyptic number.

It is an amenable number.

80902417 is a deficient number, since it is larger than the sum of its proper divisors (1).

80902417 is an equidigital number, since it uses as much as digits as its factorization.

80902417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 80902417 is about 8994.5770884461. The cubic root of 80902417 is about 432.5010493699.

The spelling of 80902417 in words is "eighty million, nine hundred two thousand, four hundred seventeen".