97389911 has 2 divisors, whose sum is σ = 97389912. Its totient is φ = 97389910.

The previous prime is 97389881. The next prime is 97389913. The reversal of 97389911 is 11998379.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97389911 - 2²² = 93195607 is a prime.

Together with 97389913, 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 (97389913) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48694955 + 48694956.

It is an arithmetic number, because the mean of its divisors is an integer number (48694956).

Almost surely, 2^97389911 is an apocalyptic number.

97389911 is a deficient number, since it is larger than the sum of its proper divisors (1).

97389911 is an equidigital number, since it uses as much as digits as its factorization.

97389911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 47.

The square root of 97389911 is about 9868.6326813799. The cubic root of 97389911 is about 460.0849102866.

The spelling of 97389911 in words is "ninety-seven million, three hundred eighty-nine thousand, nine hundred eleven".