97964831 has 2 divisors, whose sum is σ = 97964832. Its totient is φ = 97964830.

The previous prime is 97964809. The next prime is 97964833. The reversal of 97964831 is 13846979.

It is a strong prime.

It is an emirp because it is prime and its reverse (13846979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97964831 - 2²² = 93770527 is a prime.

It is a super-2 number, since 2×97964831² = 19194216225717122, which contains 22 as substring.

Together with 97964833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97964833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48982415 + 48982416.

It is an arithmetic number, because the mean of its divisors is an integer number (48982416).

Almost surely, 2^97964831 is an apocalyptic number.

97964831 is a deficient number, since it is larger than the sum of its proper divisors (1).

97964831 is an equidigital number, since it uses as much as digits as its factorization.

97964831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 97964831 is about 9897.7184744768. The cubic root of 97964831 is about 460.9884714392.

The spelling of 97964831 in words is "ninety-seven million, nine hundred sixty-four thousand, eight hundred thirty-one".