85229657 has 4 divisors (see below), whose sum is σ = 85842960. Its totient is φ = 84616356.

The previous prime is 85229623. The next prime is 85229701. The reversal of 85229657 is 75692258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75692258 = 2 ⋅37846129.

It is a cyclic number.

It is not a de Polignac number, because 85229657 - 2⁸ = 85229401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85229257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306443 + ... + 306720.

It is an arithmetic number, because the mean of its divisors is an integer number (21460740).

Almost surely, 2^85229657 is an apocalyptic number.

It is an amenable number.

85229657 is a deficient number, since it is larger than the sum of its proper divisors (613303).

85229657 is a wasteful number, since it uses less digits than its factorization.

85229657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613302.

The product of its digits is 302400, while the sum is 44.

The square root of 85229657 is about 9231.9909553682. The cubic root of 85229657 is about 440.0785964968.

The spelling of 85229657 in words is "eighty-five million, two hundred twenty-nine thousand, six hundred fifty-seven".