972731622 has 8 divisors (see below), whose sum is σ = 1945463256. Its totient is φ = 324243872.

The previous prime is 972731611. The next prime is 972731623. The reversal of 972731622 is 226137279.

It is a sphenic number, since it is the product of 3 distinct primes.

972731622 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972731623) 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 3 ways as a sum of consecutive naturals, for example, 81060963 + ... + 81060974.

It is an arithmetic number, because the mean of its divisors is an integer number (243182907).

Almost surely, 2^972731622 is an apocalyptic number.

972731622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

972731622 is a wasteful number, since it uses less digits than its factorization.

972731622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162121942.

The product of its digits is 63504, while the sum is 39.

The square root of 972731622 is about 31188.6457224420. The cubic root of 972731622 is about 990.8266475859.

The spelling of 972731622 in words is "nine hundred seventy-two million, seven hundred thirty-one thousand, six hundred twenty-two".