985398950 has 12 divisors (see below), whose sum is σ = 1832842140. Its totient is φ = 394159560.

The previous prime is 985398929. The next prime is 985398979. The reversal of 985398950 is 59893589.

It is a super-2 number, since 2×985398950² = 1942022181322205000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9853940 + ... + 9854039.

It is an arithmetic number, because the mean of its divisors is an integer number (152736845).

Almost surely, 2^985398950 is an apocalyptic number.

985398950 is a deficient number, since it is larger than the sum of its proper divisors (847443190).

985398950 is a wasteful number, since it uses less digits than its factorization.

985398950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19707991 (or 19707986 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 56.

The square root of 985398950 is about 31391.0648115033. The cubic root of 985398950 is about 995.1091014429.

The spelling of 985398950 in words is "nine hundred eighty-five million, three hundred ninety-eight thousand, nine hundred fifty".