85991024 has 40 divisors (see below), whose sum is σ = 196558848. Its totient is φ = 35663040.

The previous prime is 85991021. The next prime is 85991039. The reversal of 85991024 is 42019958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85991021) 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, 8912 + ... + 15855.

Almost surely, 2^85991024 is an apocalyptic number.

It is an amenable number.

85991024 is an abundant number, since it is smaller than the sum of its proper divisors (110567824).

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

85991024 is a wasteful number, since it uses less digits than its factorization.

85991024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24813 (or 24807 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 85991024 is about 9273.1345293811. The cubic root of 85991024 is about 441.3851390787.

The spelling of 85991024 in words is "eighty-five million, nine hundred ninety-one thousand, twenty-four".