972732090 has 32 divisors (see below), whose sum is σ = 2546790336. Its totient is φ = 235813760.

The previous prime is 972732073. The next prime is 972732091. The reversal of 972732090 is 90237279.

It is not an unprimeable number, because it can be changed into a prime (972732091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1473507 + ... + 1474166.

It is an arithmetic number, because the mean of its divisors is an integer number (79587198).

Almost surely, 2^972732090 is an apocalyptic number.

972732090 is an abundant number, since it is smaller than the sum of its proper divisors (1574058246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

972732090 is a wasteful number, since it uses less digits than its factorization.

972732090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947694.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 972732090 is about 31188.6532251715. The cubic root of 972732090 is about 990.8268064878.

The spelling of 972732090 in words is "nine hundred seventy-two million, seven hundred thirty-two thousand, ninety".