97508669 has 2 divisors, whose sum is σ = 97508670. Its totient is φ = 97508668.

The previous prime is 97508659. The next prime is 97508681. The reversal of 97508669 is 96680579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74822500 + 22686169 = 8650^2 + 4763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97508669 is a prime.

It is a super-2 number, since 2×97508669² = 19015881060303122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97508659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48754334 + 48754335.

It is an arithmetic number, because the mean of its divisors is an integer number (48754335).

Almost surely, 2^97508669 is an apocalyptic number.

It is an amenable number.

97508669 is a deficient number, since it is larger than the sum of its proper divisors (1).

97508669 is an equidigital number, since it uses as much as digits as its factorization.

97508669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 97508669 is about 9874.6477911873. The cubic root of 97508669 is about 460.2718446732.

The spelling of 97508669 in words is "ninety-seven million, five hundred eight thousand, six hundred sixty-nine".