97964869 has 2 divisors, whose sum is σ = 97964870. Its totient is φ = 97964868.

The previous prime is 97964857. The next prime is 97964887. The reversal of 97964869 is 96846979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58752225 + 39212644 = 7665^2 + 6262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97964869 is a prime.

It is a super-2 number, since 2×97964869² = 19194231116374322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97964809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48982434 + 48982435.

It is an arithmetic number, because the mean of its divisors is an integer number (48982435).

Almost surely, 2^97964869 is an apocalyptic number.

It is an amenable number.

97964869 is a deficient number, since it is larger than the sum of its proper divisors (1).

97964869 is an equidigital number, since it uses as much as digits as its factorization.

97964869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 58.

The square root of 97964869 is about 9897.7203941110. The cubic root of 97964869 is about 460.9885310441.

The spelling of 97964869 in words is "ninety-seven million, nine hundred sixty-four thousand, eight hundred sixty-nine".