9972970371 has 120 divisors (see below), whose sum is σ = 18564691200. Its totient is φ = 5224025664.

The previous prime is 9972970367. The next prime is 9972970379. The reversal of 9972970371 is 1730792799.

It is a happy number.

It is not a de Polignac number, because 9972970371 - 2² = 9972970367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972970379) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 19068516 + ... + 19069038.

It is an arithmetic number, because the mean of its divisors is an integer number (154705760).

Almost surely, 2^9972970371 is an apocalyptic number.

9972970371 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

9972970371 is a deficient number, since it is larger than the sum of its proper divisors (8591720829).

9972970371 is a wasteful number, since it uses less digits than its factorization.

9972970371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 1500282, while the sum is 54.

The square root of 9972970371 is about 99864.7604062614. The cubic root of 9972970371 is about 2152.4918194641.

The spelling of 9972970371 in words is "nine billion, nine hundred seventy-two million, nine hundred seventy thousand, three hundred seventy-one".