972772780 has 24 divisors (see below), whose sum is σ = 2334655008. Its totient is φ = 333522048.

The previous prime is 972772739. The next prime is 972772783. The reversal of 972772780 is 87277279.

It is not an unprimeable number, because it can be changed into a prime (972772783) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3474049 + ... + 3474328.

It is an arithmetic number, because the mean of its divisors is an integer number (97277292).

Almost surely, 2^972772780 is an apocalyptic number.

It is an amenable number.

972772780 is an abundant number, since it is smaller than the sum of its proper divisors (1361882228).

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

972772780 is a wasteful number, since it uses less digits than its factorization.

972772780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948393 (or 6948391 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 49.

The square root of 972772780 is about 31189.3055389183. The cubic root of 972772780 is about 990.8406219330.

The spelling of 972772780 in words is "nine hundred seventy-two million, seven hundred seventy-two thousand, seven hundred eighty".