97879505923 has 2 divisors, whose sum is σ = 97879505924. Its totient is φ = 97879505922.

The previous prime is 97879505839. The next prime is 97879505929. The reversal of 97879505923 is 32950597879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97879505923 - 2²⁵ = 97845951491 is a prime.

It is not a weakly prime, because it can be changed into another prime (97879505929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48939752961 + 48939752962.

It is an arithmetic number, because the mean of its divisors is an integer number (48939752962).

Almost surely, 2^97879505923 is an apocalyptic number.

97879505923 is a deficient number, since it is larger than the sum of its proper divisors (1).

97879505923 is an equidigital number, since it uses as much as digits as its factorization.

97879505923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42865200, while the sum is 64.

The spelling of 97879505923 in words is "ninety-seven billion, eight hundred seventy-nine million, five hundred five thousand, nine hundred twenty-three".