8972391763 has 4 divisors (see below), whose sum is σ = 9031811728. Its totient is φ = 8912971800.

The previous prime is 8972391713. The next prime is 8972391773. The reversal of 8972391763 is 3671932798.

It is a happy number.

8972391763 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8972391763 - 2²⁵ = 8938837331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8972391713) 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, 29709756 + ... + 29710057.

It is an arithmetic number, because the mean of its divisors is an integer number (2257952932).

Almost surely, 2^8972391763 is an apocalyptic number.

8972391763 is a deficient number, since it is larger than the sum of its proper divisors (59419965).

8972391763 is a wasteful number, since it uses less digits than its factorization.

8972391763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59419964.

The product of its digits is 3429216, while the sum is 55.

The square root of 8972391763 is about 94722.7098588295. The cubic root of 8972391763 is about 2077.9547019935.

The spelling of 8972391763 in words is "eight billion, nine hundred seventy-two million, three hundred ninety-one thousand, seven hundred sixty-three".