972081747 has 54 divisors (see below), whose sum is σ = 1768805532. Its totient is φ = 512707104.

The previous prime is 972081739. The next prime is 972081829. The reversal of 972081747 is 747180279.

It is a happy number.

It is not a de Polignac number, because 972081747 - 2³ = 972081739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (972081727) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 68008 + ... + 81050.

It is an arithmetic number, because the mean of its divisors is an integer number (32755658).

Almost surely, 2^972081747 is an apocalyptic number.

972081747 is a deficient number, since it is larger than the sum of its proper divisors (796723785).

972081747 is a wasteful number, since it uses less digits than its factorization.

972081747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13089 (or 13066 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 972081747 is about 31178.2255267999. The cubic root of 972081747 is about 990.6059437096.

The spelling of 972081747 in words is "nine hundred seventy-two million, eighty-one thousand, seven hundred forty-seven".