8139956 has 12 divisors (see below), whose sum is σ = 15540000. Its totient is φ = 3699960.

The previous prime is 8139919. The next prime is 8139959. The reversal of 8139956 is 6599318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8139959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92456 + ... + 92543.

It is an arithmetic number, because the mean of its divisors is an integer number (1295000).

Almost surely, 2^8139956 is an apocalyptic number.

It is an amenable number.

8139956 is a deficient number, since it is larger than the sum of its proper divisors (7400044).

8139956 is a wasteful number, since it uses less digits than its factorization.

8139956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185014 (or 185012 counting only the distinct ones).

The product of its digits is 58320, while the sum is 41.

The square root of 8139956 is about 2853.0608125310. The cubic root of 8139956 is about 201.1595640631.

The spelling of 8139956 in words is "eight million, one hundred thirty-nine thousand, nine hundred fifty-six".