97647967 has 2 divisors, whose sum is σ = 97647968. Its totient is φ = 97647966.

The previous prime is 97647941. The next prime is 97647971. The reversal of 97647967 is 76974679.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97647967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97642967) 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, 48823983 + 48823984.

It is an arithmetic number, because the mean of its divisors is an integer number (48823984).

Almost surely, 2^97647967 is an apocalyptic number.

97647967 is a deficient number, since it is larger than the sum of its proper divisors (1).

97647967 is an equidigital number, since it uses as much as digits as its factorization.

97647967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000752, while the sum is 55.

The square root of 97647967 is about 9881.6985888055. The cubic root of 97647967 is about 460.4909172999.

The spelling of 97647967 in words is "ninety-seven million, six hundred forty-seven thousand, nine hundred sixty-seven".