97219887 has 8 divisors (see below), whose sum is σ = 129716400. Its totient is φ = 64768320.

The previous prime is 97219877. The next prime is 97219901. The reversal of 97219887 is 78891279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97219887 - 2⁶ = 97219823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97219847) 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 7 ways as a sum of consecutive naturals, for example, 5814 + ... + 15107.

It is an arithmetic number, because the mean of its divisors is an integer number (16214550).

Almost surely, 2^97219887 is an apocalyptic number.

97219887 is a deficient number, since it is larger than the sum of its proper divisors (32496513).

97219887 is a wasteful number, since it uses less digits than its factorization.

97219887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22473.

The product of its digits is 508032, while the sum is 51.

The square root of 97219887 is about 9860.0145537418. The cubic root of 97219887 is about 459.8170144906.

The spelling of 97219887 in words is "ninety-seven million, two hundred nineteen thousand, eight hundred eighty-seven".