8372138 has 16 divisors (see below), whose sum is σ = 13461120. Its totient is φ = 3895056.

The previous prime is 8372137. The next prime is 8372153. The reversal of 8372138 is 8312738.

It is not an unprimeable number, because it can be changed into a prime (8372137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (841320).

Almost surely, 2^8372138 is an apocalyptic number.

8372138 is a deficient number, since it is larger than the sum of its proper divisors (5088982).

8372138 is a wasteful number, since it uses less digits than its factorization.

8372138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4981.

The product of its digits is 8064, while the sum is 32.

The square root of 8372138 is about 2893.4647051589. The cubic root of 8372138 is about 203.0542697486.

The spelling of 8372138 in words is "eight million, three hundred seventy-two thousand, one hundred thirty-eight".