97190919 has 24 divisors (see below), whose sum is σ = 165977760. Its totient is φ = 53621568.

The previous prime is 97190911. The next prime is 97190953. The reversal of 97190919 is 91909179.

It is not a de Polignac number, because 97190919 - 2³ = 97190911 is a prime.

It is a super-2 number, since 2×97190919² = 18892149472129122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97190911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24772 + ... + 28425.

It is an arithmetic number, because the mean of its divisors is an integer number (6915740).

Almost surely, 2^97190919 is an apocalyptic number.

97190919 is a deficient number, since it is larger than the sum of its proper divisors (68786841).

97190919 is a wasteful number, since it uses less digits than its factorization.

97190919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53239 (or 53236 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 45.

The square root of 97190919 is about 9858.5454809520. The cubic root of 97190919 is about 459.7713403565.

The spelling of 97190919 in words is "ninety-seven million, one hundred ninety thousand, nine hundred nineteen".