972553872 has 40 divisors (see below), whose sum is σ = 2514977920. Its totient is φ = 323856000.

The previous prime is 972553837. The next prime is 972553891. The reversal of 972553872 is 278355279.

It is a happy number.

It is a super-2 number, since 2×972553872² = 1891722067884384768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 40122 + ... + 59622.

It is an arithmetic number, because the mean of its divisors is an integer number (62874448).

Almost surely, 2^972553872 is an apocalyptic number.

It is an amenable number.

972553872 is an abundant number, since it is smaller than the sum of its proper divisors (1542424048).

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

972553872 is a wasteful number, since it uses less digits than its factorization.

972553872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20551 (or 20545 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 972553872 is about 31185.7959975371. The cubic root of 972553872 is about 990.7662917243.

The spelling of 972553872 in words is "nine hundred seventy-two million, five hundred fifty-three thousand, eight hundred seventy-two".