85742570 has 16 divisors (see below), whose sum is σ = 157621248. Its totient is φ = 33567120.

The previous prime is 85742563. The next prime is 85742581. The reversal of 85742570 is 7524758.

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, 90746 + ... + 91685.

It is an arithmetic number, because the mean of its divisors is an integer number (9851328).

Almost surely, 2^85742570 is an apocalyptic number.

85742570 is a deficient number, since it is larger than the sum of its proper divisors (71878678).

85742570 is a wasteful number, since it uses less digits than its factorization.

85742570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182485.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 85742570 is about 9259.7283977447. The cubic root of 85742570 is about 440.9596307506.

The spelling of 85742570 in words is "eighty-five million, seven hundred forty-two thousand, five hundred seventy".