97900111 has 2 divisors, whose sum is σ = 97900112. Its totient is φ = 97900110.

The previous prime is 97900097. The next prime is 97900123. The reversal of 97900111 is 11100979.

It is a strong prime.

It is an emirp because it is prime and its reverse (11100979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97900111 - 2¹⁷ = 97769039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97900111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97900211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48950055 + 48950056.

It is an arithmetic number, because the mean of its divisors is an integer number (48950056).

Almost surely, 2^97900111 is an apocalyptic number.

97900111 is a deficient number, since it is larger than the sum of its proper divisors (1).

97900111 is an equidigital number, since it uses as much as digits as its factorization.

97900111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 28.

The square root of 97900111 is about 9894.4484939788. The cubic root of 97900111 is about 460.8869324613.

The spelling of 97900111 in words is "ninety-seven million, nine hundred thousand, one hundred eleven".