85290659 has 2 divisors, whose sum is σ = 85290660. Its totient is φ = 85290658.

The previous prime is 85290643. The next prime is 85290671. The reversal of 85290659 is 95609258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85290659 - 2⁴ = 85290643 is a prime.

It is a Chen prime.

It is equal to p_4959566 and since 85290659 and 4959566 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (85290679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42645329 + 42645330.

It is an arithmetic number, because the mean of its divisors is an integer number (42645330).

Almost surely, 2^85290659 is an apocalyptic number.

85290659 is a deficient number, since it is larger than the sum of its proper divisors (1).

85290659 is an equidigital number, since it uses as much as digits as its factorization.

85290659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 85290659 is about 9235.2942021356. The cubic root of 85290659 is about 440.1835649363.

The spelling of 85290659 in words is "eighty-five million, two hundred ninety thousand, six hundred fifty-nine".