85668924 has 24 divisors (see below), whose sum is σ = 218066688. Its totient is φ = 25960240.

The previous prime is 85668923. The next prime is 85668941. The reversal of 85668924 is 42986658.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85668923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324372 + ... + 324635.

It is an arithmetic number, because the mean of its divisors is an integer number (9086112).

Almost surely, 2^85668924 is an apocalyptic number.

It is an amenable number.

85668924 is an abundant number, since it is smaller than the sum of its proper divisors (132397764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85668924 is a wasteful number, since it uses less digits than its factorization.

85668924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649025 (or 649023 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 85668924 is about 9255.7508609513. The cubic root of 85668924 is about 440.8333449193.

The spelling of 85668924 in words is "eighty-five million, six hundred sixty-eight thousand, nine hundred twenty-four".