97764319 has 2 divisors, whose sum is σ = 97764320. Its totient is φ = 97764318.

The previous prime is 97764313. The next prime is 97764347. The reversal of 97764319 is 91346779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97764319 - 2³ = 97764311 is a prime.

It is a super-2 number, since 2×97764319² = 19115724139067522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97764311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48882159 + 48882160.

It is an arithmetic number, because the mean of its divisors is an integer number (48882160).

Almost surely, 2^97764319 is an apocalyptic number.

97764319 is a deficient number, since it is larger than the sum of its proper divisors (1).

97764319 is an equidigital number, since it uses as much as digits as its factorization.

97764319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The square root of 97764319 is about 9887.5840830812. The cubic root of 97764319 is about 460.6737433375.

The spelling of 97764319 in words is "ninety-seven million, seven hundred sixty-four thousand, three hundred nineteen".