9138970 has 16 divisors (see below), whose sum is σ = 16557768. Its totient is φ = 3631680.

The previous prime is 9138967. The next prime is 9138991. The reversal of 9138970 is 798319.

9138970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7991929 + 1147041 = 2827^2 + 1071^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341 + ... + 4480.

Almost surely, 2^9138970 is an apocalyptic number.

9138970 is a deficient number, since it is larger than the sum of its proper divisors (7418798).

9138970 is a wasteful number, since it uses less digits than its factorization.

9138970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 9138970 is about 3023.0729399073. The cubic root of 9138970 is about 209.0735453874.

The spelling of 9138970 in words is "nine million, one hundred thirty-eight thousand, nine hundred seventy".