10668657 has 4 divisors (see below), whose sum is σ = 14224880. Its totient is φ = 7112436.

The previous prime is 10668653. The next prime is 10668659. The reversal of 10668657 is 75686601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10668657 - 2² = 10668653 is a prime.

It is a super-2 number, since 2×10668657² = 227640484367298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10668653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778107 + ... + 1778112.

It is an arithmetic number, because the mean of its divisors is an integer number (3556220).

Almost surely, 2^10668657 is an apocalyptic number.

It is an amenable number.

10668657 is a deficient number, since it is larger than the sum of its proper divisors (3556223).

10668657 is an equidigital number, since it uses as much as digits as its factorization.

10668657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556222.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 10668657 is about 3266.2910158160. The cubic root of 10668657 is about 220.1421739412.

It can be divided in two parts, 10668 and 657, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 10668657 in words is "ten million, six hundred sixty-eight thousand, six hundred fifty-seven".