85902919 has 2 divisors, whose sum is σ = 85902920. Its totient is φ = 85902918.

The previous prime is 85902851. The next prime is 85902931. The reversal of 85902919 is 91920958.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85902919 - 2²⁵ = 52348487 is a prime.

It is a super-2 number, since 2×85902919² = 14758622985441122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85902979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42951459 + 42951460.

It is an arithmetic number, because the mean of its divisors is an integer number (42951460).

Almost surely, 2^85902919 is an apocalyptic number.

85902919 is a deficient number, since it is larger than the sum of its proper divisors (1).

85902919 is an equidigital number, since it uses as much as digits as its factorization.

85902919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 85902919 is about 9268.3827607625. The cubic root of 85902919 is about 441.2343422286.

The spelling of 85902919 in words is "eighty-five million, nine hundred two thousand, nine hundred nineteen".