85423712 has 24 divisors (see below), whose sum is σ = 183467592. Its totient is φ = 38828800.

The previous prime is 85423703. The next prime is 85423733. The reversal of 85423712 is 21732458.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 120989 + ... + 121692.

It is an arithmetic number, because the mean of its divisors is an integer number (7644483).

Almost surely, 2^85423712 is an apocalyptic number.

It is an amenable number.

85423712 is an abundant number, since it is smaller than the sum of its proper divisors (98043880).

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

85423712 is a wasteful number, since it uses less digits than its factorization.

85423712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242702 (or 242694 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 85423712 is about 9242.4949012699. The cubic root of 85423712 is about 440.4123407318.

The spelling of 85423712 in words is "eighty-five million, four hundred twenty-three thousand, seven hundred twelve".