9138764 has 6 divisors (see below), whose sum is σ = 15992844. Its totient is φ = 4569380.

The previous prime is 9138757. The next prime is 9138803. The reversal of 9138764 is 4678319.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1142342 + ... + 1142349.

It is an arithmetic number, because the mean of its divisors is an integer number (2665474).

Almost surely, 2^9138764 is an apocalyptic number.

It is an amenable number.

9138764 is a deficient number, since it is larger than the sum of its proper divisors (6854080).

9138764 is a wasteful number, since it uses less digits than its factorization.

9138764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284695 (or 2284693 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 9138764 is about 3023.0388684236. The cubic root of 9138764 is about 209.0719744783.

The spelling of 9138764 in words is "nine million, one hundred thirty-eight thousand, seven hundred sixty-four".