97217590 has 8 divisors (see below), whose sum is σ = 174991680. Its totient is φ = 38887032.

The previous prime is 97217579. The next prime is 97217597. The reversal of 97217590 is 9571279.

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

It is a super-3 number, since 3×97217590³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97217597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4860870 + ... + 4860889.

It is an arithmetic number, because the mean of its divisors is an integer number (21873960).

Almost surely, 2^97217590 is an apocalyptic number.

97217590 is a deficient number, since it is larger than the sum of its proper divisors (77774090).

97217590 is a wasteful number, since it uses less digits than its factorization.

97217590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9721766.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 97217590 is about 9859.8980724955. The cubic root of 97217590 is about 459.8133931190.

The spelling of 97217590 in words is "ninety-seven million, two hundred seventeen thousand, five hundred ninety".