97961879 has 2 divisors, whose sum is σ = 97961880. Its totient is φ = 97961878.

The previous prime is 97961873. The next prime is 97961911. The reversal of 97961879 is 97816979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97961879 - 2¹⁶ = 97896343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97961873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48980939 + 48980940.

It is an arithmetic number, because the mean of its divisors is an integer number (48980940).

Almost surely, 2^97961879 is an apocalyptic number.

97961879 is a deficient number, since it is larger than the sum of its proper divisors (1).

97961879 is an equidigital number, since it uses as much as digits as its factorization.

97961879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 56.

The square root of 97961879 is about 9897.5693480773. The cubic root of 97961879 is about 460.9838410304.

The spelling of 97961879 in words is "ninety-seven million, nine hundred sixty-one thousand, eight hundred seventy-nine".