85598818 has 4 divisors (see below), whose sum is σ = 128398230. Its totient is φ = 42799408.

The previous prime is 85598809. The next prime is 85598827. The reversal of 85598818 is 81889558.

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

It is an interprime number because it is at equal distance from previous prime (85598809) and next prime (85598827).

It can be written as a sum of positive squares in only one way, i.e., 85507009 + 91809 = 9247^2 + 303^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21399703 + ... + 21399706.

Almost surely, 2^85598818 is an apocalyptic number.

85598818 is a deficient number, since it is larger than the sum of its proper divisors (42799412).

85598818 is a wasteful number, since it uses less digits than its factorization.

85598818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42799411.

The product of its digits is 921600, while the sum is 52.

The square root of 85598818 is about 9251.9629268604. The cubic root of 85598818 is about 440.7130621099.

The spelling of 85598818 in words is "eighty-five million, five hundred ninety-eight thousand, eight hundred eighteen".