972385780 has 24 divisors (see below), whose sum is σ = 2055023208. Its totient is φ = 386475648.

The previous prime is 972385727. The next prime is 972385793. The reversal of 972385780 is 87583279.

It can be written as a sum of positive squares in 4 ways, for example, as 318096 + 972067684 = 564^2 + 31178^2 .

It is a congruent number.

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, 151699 + ... + 157978.

It is an arithmetic number, because the mean of its divisors is an integer number (85625967).

Almost surely, 2^972385780 is an apocalyptic number.

It is an amenable number.

972385780 is an abundant number, since it is smaller than the sum of its proper divisors (1082637428).

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

972385780 is a wasteful number, since it uses less digits than its factorization.

972385780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309843 (or 309841 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 972385780 is about 31183.1008721070. The cubic root of 972385780 is about 990.7092085170.

The spelling of 972385780 in words is "nine hundred seventy-two million, three hundred eighty-five thousand, seven hundred eighty".