97909907 has 4 divisors (see below), whose sum is σ = 103063080. Its totient is φ = 92756736.

The previous prime is 97909901. The next prime is 97909913. The reversal of 97909907 is 70990979.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (97909901) and next prime (97909913).

It is a cyclic number.

It is not a de Polignac number, because 97909907 - 2⁴ = 97909891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97909901) 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 in 3 ways as a sum of consecutive naturals, for example, 2576558 + ... + 2576595.

It is an arithmetic number, because the mean of its divisors is an integer number (25765770).

Almost surely, 2^97909907 is an apocalyptic number.

97909907 is a deficient number, since it is larger than the sum of its proper divisors (5153173).

97909907 is a wasteful number, since it uses less digits than its factorization.

97909907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153172.

The product of its (nonzero) digits is 321489, while the sum is 50.

The square root of 97909907 is about 9894.9435066604. The cubic root of 97909907 is about 460.9023042444.

The spelling of 97909907 in words is "ninety-seven million, nine hundred nine thousand, nine hundred seven".