97890317 has 8 divisors (see below), whose sum is σ = 114476736. Its totient is φ = 81954432.

The previous prime is 97890269. The next prime is 97890319. The reversal of 97890317 is 71309879.

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

It is not a de Polignac number, because 97890317 - 2⁸ = 97890061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97890319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162308 + ... + 162909.

It is an arithmetic number, because the mean of its divisors is an integer number (14309592).

Almost surely, 2^97890317 is an apocalyptic number.

It is an amenable number.

97890317 is a deficient number, since it is larger than the sum of its proper divisors (16586419).

97890317 is a wasteful number, since it uses less digits than its factorization.

97890317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325267.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 97890317 is about 9893.9535576027. The cubic root of 97890317 is about 460.8715627914.

The spelling of 97890317 in words is "ninety-seven million, eight hundred ninety thousand, three hundred seventeen".