9228972507 has 4 divisors (see below), whose sum is σ = 12305296680. Its totient is φ = 6152648336.

The previous prime is 9228972503. The next prime is 9228972509. The reversal of 9228972507 is 7052798229.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9228972507 - 2² = 9228972503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9228972507.

It is not an unprimeable number, because it can be changed into a prime (9228972503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538162082 + ... + 1538162087.

It is an arithmetic number, because the mean of its divisors is an integer number (3076324170).

Almost surely, 2^9228972507 is an apocalyptic number.

9228972507 is a deficient number, since it is larger than the sum of its proper divisors (3076324173).

9228972507 is a wasteful number, since it uses less digits than its factorization.

9228972507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076324172.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 9228972507 is about 96067.5413810513. The cubic root of 9228972507 is about 2097.5763806101.

The spelling of 9228972507 in words is "nine billion, two hundred twenty-eight million, nine hundred seventy-two thousand, five hundred seven".