97668019 has 2 divisors, whose sum is σ = 97668020. Its totient is φ = 97668018.

The previous prime is 97667987. The next prime is 97668031. The reversal of 97668019 is 91086679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97668019 - 2⁵ = 97667987 is a prime.

It is a super-2 number, since 2×97668019² = 19078083870768722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97668019.

It is not a weakly prime, because it can be changed into another prime (97668089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48834009 + 48834010.

It is an arithmetic number, because the mean of its divisors is an integer number (48834010).

Almost surely, 2^97668019 is an apocalyptic number.

97668019 is a deficient number, since it is larger than the sum of its proper divisors (1).

97668019 is an equidigital number, since it uses as much as digits as its factorization.

97668019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 97668019 is about 9882.7131396191. The cubic root of 97668019 is about 460.5224357301.

The spelling of 97668019 in words is "ninety-seven million, six hundred sixty-eight thousand, nineteen".