85909502 has 16 divisors (see below), whose sum is σ = 150053472. Its totient is φ = 36123360.

The previous prime is 85909459. The next prime is 85909541. The reversal of 85909502 is 20590958.

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, 57149 + ... + 58632.

It is an arithmetic number, because the mean of its divisors is an integer number (9378342).

Almost surely, 2^85909502 is an apocalyptic number.

85909502 is a deficient number, since it is larger than the sum of its proper divisors (64143970).

85909502 is a wasteful number, since it uses less digits than its factorization.

85909502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115843.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 85909502 is about 9268.7378860339. The cubic root of 85909502 is about 441.2456129806.

The spelling of 85909502 in words is "eighty-five million, nine hundred nine thousand, five hundred two".