85899506 has 16 divisors (see below), whose sum is σ = 160643520. Its totient is φ = 33467280.

The previous prime is 85899497. The next prime is 85899547. The reversal of 85899506 is 60599858.

It is a happy number.

It is a Curzon 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, 278741 + ... + 279048.

It is an arithmetic number, because the mean of its divisors is an integer number (10040220).

Almost surely, 2^85899506 is an apocalyptic number.

85899506 is a deficient number, since it is larger than the sum of its proper divisors (74744014).

85899506 is a wasteful number, since it uses less digits than its factorization.

85899506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557809.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 85899506 is about 9268.1986383547. The cubic root of 85899506 is about 441.2284986059.

The spelling of 85899506 in words is "eighty-five million, eight hundred ninety-nine thousand, five hundred six".