97869904879 has 2 divisors, whose sum is σ = 97869904880. Its totient is φ = 97869904878.

The previous prime is 97869904877. The next prime is 97869904897. The reversal of 97869904879 is 97840996879.

Together with next prime (97869904897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97869904879 - 2¹ = 97869904877 is a prime.

Together with 97869904877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97869904871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48934952439 + 48934952440.

It is an arithmetic number, because the mean of its divisors is an integer number (48934952440).

Almost surely, 2^97869904879 is an apocalyptic number.

97869904879 is a deficient number, since it is larger than the sum of its proper divisors (1).

97869904879 is an equidigital number, since it uses as much as digits as its factorization.

97869904879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493807104, while the sum is 76.

The spelling of 97869904879 in words is "ninety-seven billion, eight hundred sixty-nine million, nine hundred four thousand, eight hundred seventy-nine".