972913830 has 64 divisors (see below), whose sum is σ = 2671971840. Its totient is φ = 222096384.

The previous prime is 972913807. The next prime is 972913831. The reversal of 972913830 is 38319279.

It is a super-2 number, since 2×972913830² = 1893122641210537800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972913831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192597 + ... + 197583.

It is an arithmetic number, because the mean of its divisors is an integer number (41749560).

Almost surely, 2^972913830 is an apocalyptic number.

972913830 is an abundant number, since it is smaller than the sum of its proper divisors (1699058010).

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

972913830 is a wasteful number, since it uses less digits than its factorization.

972913830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 972913830 is about 31191.5666486953. The cubic root of 972913830 is about 990.8885095515. Note that the first 3 decimals are identical.

The spelling of 972913830 in words is "nine hundred seventy-two million, nine hundred thirteen thousand, eight hundred thirty".