8137944 has 24 divisors (see below), whose sum is σ = 22040460. Its totient is φ = 2712624.

The previous prime is 8137931. The next prime is 8137957. The reversal of 8137944 is 4497318.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8137931) and next prime (8137957).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×8137944² = 132452265094272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8137899 and 8137908.

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, 56442 + ... + 56585.

Almost surely, 2^8137944 is an apocalyptic number.

It is an amenable number.

8137944 is an abundant number, since it is smaller than the sum of its proper divisors (13902516).

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

8137944 is a wasteful number, since it uses less digits than its factorization.

8137944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113039 (or 113032 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 8137944 is about 2852.7081869690. The cubic root of 8137944 is about 201.1429887731.

It can be divided in two parts, 81 and 37944, that added together give a square (38025 = 195²).

The spelling of 8137944 in words is "eight million, one hundred thirty-seven thousand, nine hundred forty-four".