85916624 has 20 divisors (see below), whose sum is σ = 171834240. Its totient is φ = 41572320.

The previous prime is 85916591. The next prime is 85916639. The reversal of 85916624 is 42661958.

It is a happy number.

85916624 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86114 + ... + 87105.

It is an arithmetic number, because the mean of its divisors is an integer number (8591712).

Almost surely, 2^85916624 is an apocalyptic number.

It is an amenable number.

85916624 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

85916624 is a wasteful number, since it uses less digits than its factorization.

85916624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173258 (or 173252 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 85916624 is about 9269.1220727747. The cubic root of 85916624 is about 441.2578059059.

The spelling of 85916624 in words is "eighty-five million, nine hundred sixteen thousand, six hundred twenty-four".