85729574 has 16 divisors (see below), whose sum is σ = 147367968. Its totient is φ = 36640512.

The previous prime is 85729549. The next prime is 85729591. The reversal of 85729574 is 47592758.

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, 2987 + ... + 13430.

It is an arithmetic number, because the mean of its divisors is an integer number (9210498).

Almost surely, 2^85729574 is an apocalyptic number.

85729574 is a deficient number, since it is larger than the sum of its proper divisors (61638394).

85729574 is a wasteful number, since it uses less digits than its factorization.

85729574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16799.

The product of its digits is 705600, while the sum is 47.

The square root of 85729574 is about 9259.0266227072. The cubic root of 85729574 is about 440.9373508768.

The spelling of 85729574 in words is "eighty-five million, seven hundred twenty-nine thousand, five hundred seventy-four".