85205872 has 20 divisors (see below), whose sum is σ = 169114176. Its totient is φ = 41563520.

The previous prime is 85205863. The next prime is 85205881. The reversal of 85205872 is 27850258.

It is an interprime number because it is at equal distance from previous prime (85205863) and next prime (85205881).

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, 64288 + ... + 65599.

Almost surely, 2^85205872 is an apocalyptic number.

85205872 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

85205872 is a deficient number, since it is larger than the sum of its proper divisors (83908304).

85205872 is a wasteful number, since it uses less digits than its factorization.

85205872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129936 (or 129930 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 85205872 is about 9230.7026818114. The cubic root of 85205872 is about 440.0376551796.

The spelling of 85205872 in words is "eighty-five million, two hundred five thousand, eight hundred seventy-two".