85742524 has 24 divisors (see below), whose sum is σ = 173093760. Its totient is φ = 36402096.

The previous prime is 85742467. The next prime is 85742557. The reversal of 85742524 is 42524758.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11314 + ... + 17305.

It is an arithmetic number, because the mean of its divisors is an integer number (7212240).

Almost surely, 2^85742524 is an apocalyptic number.

It is an amenable number.

85742524 is an abundant number, since it is smaller than the sum of its proper divisors (87351236).

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

85742524 is a wasteful number, since it uses less digits than its factorization.

85742524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28737 (or 28735 counting only the distinct ones).

The product of its digits is 89600, while the sum is 37.

The square root of 85742524 is about 9259.7259138702. The cubic root of 85742524 is about 440.9595518938.

The spelling of 85742524 in words is "eighty-five million, seven hundred forty-two thousand, five hundred twenty-four".