9137864 has 8 divisors (see below), whose sum is σ = 17133510. Its totient is φ = 4568928.

The previous prime is 9137837. The next prime is 9137873. The reversal of 9137864 is 4687319.

9137864 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 only one way, i.e., 8076964 + 1060900 = 2842^2 + 1030^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571109 + ... + 571124.

Almost surely, 2^9137864 is an apocalyptic number.

It is an amenable number.

9137864 is a deficient number, since it is larger than the sum of its proper divisors (7995646).

9137864 is a wasteful number, since it uses less digits than its factorization.

9137864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142239 (or 1142235 counting only the distinct ones).

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

The square root of 9137864 is about 3022.8900079229. The cubic root of 9137864 is about 209.0651110063.

It can be divided in two parts, 9137 and 864, that added together give a palindrome (10001).

The spelling of 9137864 in words is "nine million, one hundred thirty-seven thousand, eight hundred sixty-four".