220197597 has 8 divisors (see below), whose sum is σ = 295134720. Its totient is φ = 146029440.

The previous prime is 220197533. The next prime is 220197611. The reversal of 220197597 is 795791022.

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

It is not a de Polignac number, because 220197597 - 2⁶ = 220197533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220197697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191572 + ... + 192717.

It is an arithmetic number, because the mean of its divisors is an integer number (36891840).

Almost surely, 2^220197597 is an apocalyptic number.

It is an amenable number.

220197597 is a deficient number, since it is larger than the sum of its proper divisors (74937123).

220197597 is a wasteful number, since it uses less digits than its factorization.

220197597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384483.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 220197597 is about 14839.0564727007. The cubic root of 220197597 is about 603.8617553072.

The spelling of 220197597 in words is "two hundred twenty million, one hundred ninety-seven thousand, five hundred ninety-seven".