972691092 has 144 divisors (see below), whose sum is σ = 2772224000. Its totient is φ = 297082080.

The previous prime is 972691087. The next prime is 972691121. The reversal of 972691092 is 290196279.

It is a super-2 number, since 2×972691092² = 1892255920912304928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 571659 + ... + 573357.

Almost surely, 2^972691092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 972691092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386112000).

972691092 is an abundant number, since it is smaller than the sum of its proper divisors (1799532908).

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

972691092 is a wasteful number, since it uses less digits than its factorization.

972691092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1754 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 972691092 is about 31187.9959599843. The cubic root of 972691092 is about 990.8128860780.

The spelling of 972691092 in words is "nine hundred seventy-two million, six hundred ninety-one thousand, ninety-two".