581620197 has 8 divisors (see below), whose sum is σ = 775754560. Its totient is φ = 387616320.

The previous prime is 581620187. The next prime is 581620213. The reversal of 581620197 is 791026185.

581620197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 581620197 - 2⁴ = 581620181 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 (581620147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21697 + ... + 40422.

It is an arithmetic number, because the mean of its divisors is an integer number (96969320).

Almost surely, 2^581620197 is an apocalyptic number.

It is an amenable number.

581620197 is a deficient number, since it is larger than the sum of its proper divisors (194134363).

581620197 is a wasteful number, since it uses less digits than its factorization.

581620197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65243.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 581620197 is about 24116.8032085515. The cubic root of 581620197 is about 834.7309049575.

The spelling of 581620197 in words is "five hundred eighty-one million, six hundred twenty thousand, one hundred ninety-seven".