939698838 has 48 divisors (see below), whose sum is σ = 2220429120. Its totient is φ = 285472512.

The previous prime is 939698819. The next prime is 939698863. The reversal of 939698838 is 838896939.

It is a super-2 number, since 2×939698838² = 1766067812277100488, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 6931 + ... + 43902.

It is an arithmetic number, because the mean of its divisors is an integer number (46258940).

Almost surely, 2^939698838 is an apocalyptic number.

939698838 is an abundant number, since it is smaller than the sum of its proper divisors (1280730282).

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

939698838 is a wasteful number, since it uses less digits than its factorization.

939698838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50933 (or 50930 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The square root of 939698838 is about 30654.5076293846. The cubic root of 939698838 is about 979.4814826080.

The spelling of 939698838 in words is "nine hundred thirty-nine million, six hundred ninety-eight thousand, eight hundred thirty-eight".