985538918 has 32 divisors (see below), whose sum is σ = 1878159360. Its totient is φ = 377304480.

The previous prime is 985538899. The next prime is 985538927. The reversal of 985538918 is 819835589.

It is a super-2 number, since 2×985538918² = 1942573917785221448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81698 + ... + 92981.

It is an arithmetic number, because the mean of its divisors is an integer number (58692480).

Almost surely, 2^985538918 is an apocalyptic number.

985538918 is a deficient number, since it is larger than the sum of its proper divisors (892620442).

985538918 is a wasteful number, since it uses less digits than its factorization.

985538918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174732.

The product of its digits is 3110400, while the sum is 56.

The square root of 985538918 is about 31393.2941565552. The cubic root of 985538918 is about 995.1562149619.

The spelling of 985538918 in words is "nine hundred eighty-five million, five hundred thirty-eight thousand, nine hundred eighteen".