85111928 has 32 divisors (see below), whose sum is σ = 184336560. Its totient is φ = 36410880.

The previous prime is 85111927. The next prime is 85111933. The reversal of 85111928 is 82911158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85111927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26951 + ... + 29942.

Almost surely, 2^85111928 is an apocalyptic number.

85111928 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

85111928 is an abundant number, since it is smaller than the sum of its proper divisors (99224632).

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

85111928 is a wasteful number, since it uses less digits than its factorization.

85111928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56927 (or 56923 counting only the distinct ones).

The product of its digits is 5760, while the sum is 35.

The square root of 85111928 is about 9225.6126083854. The cubic root of 85111928 is about 439.8758740777.

The spelling of 85111928 in words is "eighty-five million, one hundred eleven thousand, nine hundred twenty-eight".