985689628 has 24 divisors (see below), whose sum is σ = 2150596224. Its totient is φ = 384034800.

The previous prime is 985689599. The next prime is 985689637. The reversal of 985689628 is 826986589.

It is a congruent 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, 1599838 + ... + 1600453.

It is an arithmetic number, because the mean of its divisors is an integer number (89608176).

Almost surely, 2^985689628 is an apocalyptic number.

It is an amenable number.

985689628 is an abundant number, since it is smaller than the sum of its proper divisors (1164906596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

985689628 is a wasteful number, since it uses less digits than its factorization.

985689628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200313 (or 3200311 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 61.

The square root of 985689628 is about 31395.6944181842. The cubic root of 985689628 is about 995.2069392732.

The spelling of 985689628 in words is "nine hundred eighty-five million, six hundred eighty-nine thousand, six hundred twenty-eight".