97623859 has 2 divisors, whose sum is σ = 97623860. Its totient is φ = 97623858.

The previous prime is 97623817. The next prime is 97623887. The reversal of 97623859 is 95832679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97623859 - 2²¹ = 95526707 is a prime.

It is not a weakly prime, because it can be changed into another prime (97623359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48811929 + 48811930.

It is an arithmetic number, because the mean of its divisors is an integer number (48811930).

Almost surely, 2^97623859 is an apocalyptic number.

97623859 is a deficient number, since it is larger than the sum of its proper divisors (1).

97623859 is an equidigital number, since it uses as much as digits as its factorization.

97623859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 97623859 is about 9880.4786827360. The cubic root of 97623859 is about 460.4530177951.

The spelling of 97623859 in words is "ninety-seven million, six hundred twenty-three thousand, eight hundred fifty-nine".