9272021764 has 6 divisors (see below), whose sum is σ = 16226038094. Its totient is φ = 4636010880.

The previous prime is 9272021761. The next prime is 9272021807. The reversal of 9272021764 is 4671202729.

It can be written as a sum of positive squares in only one way, i.e., 7640508100 + 1631513664 = 87410^2 + 40392^2 .

It is not an unprimeable number, because it can be changed into a prime (9272021761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1159002717 + ... + 1159002724.

Almost surely, 2^9272021764 is an apocalyptic number.

It is an amenable number.

9272021764 is a deficient number, since it is larger than the sum of its proper divisors (6954016330).

9272021764 is a wasteful number, since it uses less digits than its factorization.

9272021764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318005445 (or 2318005443 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 9272021764 is about 96291.3379489557. The cubic root of 9272021764 is about 2100.8327584623.

The spelling of 9272021764 in words is "nine billion, two hundred seventy-two million, twenty-one thousand, seven hundred sixty-four".