85199635 has 4 divisors (see below), whose sum is σ = 102239568. Its totient is φ = 68159704.

The previous prime is 85199623. The next prime is 85199663. The reversal of 85199635 is 53699158.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85199635 - 2⁷ = 85199507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8519959 + ... + 8519968.

It is an arithmetic number, because the mean of its divisors is an integer number (25559892).

Almost surely, 2^85199635 is an apocalyptic number.

85199635 is a deficient number, since it is larger than the sum of its proper divisors (17039933).

85199635 is a wasteful number, since it uses less digits than its factorization.

85199635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17039932.

The product of its digits is 291600, while the sum is 46.

The square root of 85199635 is about 9230.3648356931. The cubic root of 85199635 is about 440.0269181190.

The spelling of 85199635 in words is "eighty-five million, one hundred ninety-nine thousand, six hundred thirty-five".