972020900 has 36 divisors (see below), whose sum is σ = 2233364868. Its totient is φ = 365936640.

The previous prime is 972020897. The next prime is 972020941. The reversal of 972020900 is 9020279.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 28793956 + 943226944 = 5366^2 + 30712^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284189 + ... + 287588.

It is an arithmetic number, because the mean of its divisors is an integer number (62037913).

Almost surely, 2^972020900 is an apocalyptic number.

It is an amenable number.

972020900 is an abundant number, since it is smaller than the sum of its proper divisors (1261343968).

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

972020900 is a wasteful number, since it uses less digits than its factorization.

972020900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571808 (or 571801 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 972020900 is about 31177.2497183443. The cubic root of 972020900 is about 990.5852744405.

The spelling of 972020900 in words is "nine hundred seventy-two million, twenty thousand, nine hundred".