8972241631 has 2 divisors, whose sum is σ = 8972241632. Its totient is φ = 8972241630.

The previous prime is 8972241613. The next prime is 8972241653. The reversal of 8972241631 is 1361422798.

Together with previous prime (8972241613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8972241631 - 2⁵ = 8972241599 is a prime.

It is a super-2 number, since 2×8972241631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8972241661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4486120815 + 4486120816.

It is an arithmetic number, because the mean of its divisors is an integer number (4486120816).

Almost surely, 2^8972241631 is an apocalyptic number.

8972241631 is a deficient number, since it is larger than the sum of its proper divisors (1).

8972241631 is an equidigital number, since it uses as much as digits as its factorization.

8972241631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 8972241631 is about 94721.9173739637. The cubic root of 8972241631 is about 2077.9431120242.

The spelling of 8972241631 in words is "eight billion, nine hundred seventy-two million, two hundred forty-one thousand, six hundred thirty-one".