85389724 has 24 divisors (see below), whose sum is σ = 179768960. Its totient is φ = 34669296.

The previous prime is 85389721. The next prime is 85389737. The reversal of 85389724 is 42798358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85389721) 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, 79722 + ... + 80785.

Almost surely, 2^85389724 is an apocalyptic number.

It is an amenable number.

85389724 is an abundant number, since it is smaller than the sum of its proper divisors (94379236).

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

85389724 is a wasteful number, since it uses less digits than its factorization.

85389724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160537 (or 160535 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 85389724 is about 9240.6560373168. The cubic root of 85389724 is about 440.3539232271.

The spelling of 85389724 in words is "eighty-five million, three hundred eighty-nine thousand, seven hundred twenty-four".