972839780 has 24 divisors (see below), whose sum is σ = 2228688000. Its totient is φ = 353759840.

The previous prime is 972839753. The next prime is 972839821. The reversal of 972839780 is 87938279.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210780 + ... + 2211219.

It is an arithmetic number, because the mean of its divisors is an integer number (92862000).

Almost surely, 2^972839780 is an apocalyptic number.

It is an amenable number.

972839780 is an abundant number, since it is smaller than the sum of its proper divisors (1255848220).

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

972839780 is a wasteful number, since it uses less digits than its factorization.

972839780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422019 (or 4422017 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 972839780 is about 31190.3796065389. The cubic root of 972839780 is about 990.8633695533.

The spelling of 972839780 in words is "nine hundred seventy-two million, eight hundred thirty-nine thousand, seven hundred eighty".