97217589 has 16 divisors (see below), whose sum is σ = 149276160. Its totient is φ = 55127280.

The previous prime is 97217579. The next prime is 97217597. The reversal of 97217589 is 98571279.

It is not a de Polignac number, because 97217589 - 2⁵ = 97217557 is a prime.

It is a super-2 number, since 2×97217589² = 18902519221945842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97217579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14919 + ... + 20420.

It is an arithmetic number, because the mean of its divisors is an integer number (9329760).

Almost surely, 2^97217589 is an apocalyptic number.

It is an amenable number.

97217589 is a deficient number, since it is larger than the sum of its proper divisors (52058571).

97217589 is a wasteful number, since it uses less digits than its factorization.

97217589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35480.

The product of its digits is 317520, while the sum is 48.

The square root of 97217589 is about 9859.8980217850. The cubic root of 97217589 is about 459.8133915425.

The spelling of 97217589 in words is "ninety-seven million, two hundred seventeen thousand, five hundred eighty-nine".