12862661 has 8 divisors (see below), whose sum is σ = 14723904. Its totient is φ = 11007360.

The previous prime is 12862657. The next prime is 12862679. The reversal of 12862661 is 16626821.

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

It is not a de Polignac number, because 12862661 - 2² = 12862657 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 (12862621) 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, 5141 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (1840488).

Almost surely, 2^12862661 is an apocalyptic number.

It is an amenable number.

12862661 is a deficient number, since it is larger than the sum of its proper divisors (1861243).

12862661 is an equidigital number, since it uses as much as digits as its factorization.

12862661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971.

The product of its digits is 6912, while the sum is 32.

The square root of 12862661 is about 3586.4552137173. The cubic root of 12862661 is about 234.3025101093.

The spelling of 12862661 in words is "twelve million, eight hundred sixty-two thousand, six hundred sixty-one".