85699634 has 8 divisors (see below), whose sum is σ = 129028140. Its totient is φ = 42690256.

The previous prime is 85699583. The next prime is 85699643. The reversal of 85699634 is 43699658.

It can be written as a sum of positive squares in 2 ways, for example, as 81090025 + 4609609 = 9005^2 + 2147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 79109 + ... + 80184.

Almost surely, 2^85699634 is an apocalyptic number.

85699634 is a deficient number, since it is larger than the sum of its proper divisors (43328506).

85699634 is a wasteful number, since it uses less digits than its factorization.

85699634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159564.

The product of its digits is 1399680, while the sum is 50.

The square root of 85699634 is about 9257.4096808989. The cubic root of 85699634 is about 440.8860142500.

The spelling of 85699634 in words is "eighty-five million, six hundred ninety-nine thousand, six hundred thirty-four".