85724630 has 16 divisors (see below), whose sum is σ = 156419424. Its totient is φ = 33819840.

The previous prime is 85724629. The next prime is 85724647. The reversal of 85724630 is 3642758.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57986 + ... + 59445.

It is an arithmetic number, because the mean of its divisors is an integer number (9776214).

Almost surely, 2^85724630 is an apocalyptic number.

85724630 is a deficient number, since it is larger than the sum of its proper divisors (70694794).

85724630 is a wasteful number, since it uses less digits than its factorization.

85724630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117511.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 85724630 is about 9258.7596361500. The cubic root of 85724630 is about 440.9288744702.

The spelling of 85724630 in words is "eighty-five million, seven hundred twenty-four thousand, six hundred thirty".