97173911 has 2 divisors, whose sum is σ = 97173912. Its totient is φ = 97173910.

The previous prime is 97173859. The next prime is 97173913. The reversal of 97173911 is 11937179.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97173911 - 2¹⁴ = 97157527 is a prime.

It is a Sophie Germain prime.

Together with 97173913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97173913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48586955 + 48586956.

It is an arithmetic number, because the mean of its divisors is an integer number (48586956).

Almost surely, 2^97173911 is an apocalyptic number.

97173911 is a deficient number, since it is larger than the sum of its proper divisors (1).

97173911 is an equidigital number, since it uses as much as digits as its factorization.

97173911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11907, while the sum is 38.

The square root of 97173911 is about 9857.6828413172. The cubic root of 97173911 is about 459.7445194449.

The spelling of 97173911 in words is "ninety-seven million, one hundred seventy-three thousand, nine hundred eleven".