656372093 has 8 divisors (see below), whose sum is σ = 707097888. Its totient is φ = 605679984.

The previous prime is 656372077. The next prime is 656372107. The reversal of 656372093 is 390273656.

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

It is not a de Polignac number, because 656372093 - 2⁴ = 656372077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 656372093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656372293) 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, 44330 + ... + 57252.

It is an arithmetic number, because the mean of its divisors is an integer number (88387236).

Almost surely, 2^656372093 is an apocalyptic number.

It is an amenable number.

656372093 is a deficient number, since it is larger than the sum of its proper divisors (50725795).

656372093 is a wasteful number, since it uses less digits than its factorization.

656372093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16843.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 656372093 is about 25619.7598154237. The cubic root of 656372093 is about 869.0605497555.

The spelling of 656372093 in words is "six hundred fifty-six million, three hundred seventy-two thousand, ninety-three".