11426681 has 4 divisors (see below), whose sum is σ = 13059072. Its totient is φ = 9794292.

The previous prime is 11426677. The next prime is 11426689. The reversal of 11426681 is 18662411.

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 a cyclic number.

It is not a de Polignac number, because 11426681 - 2² = 11426677 is a prime.

It is a super-2 number, since 2×11426681² = 261138077351522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11426689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816185 + ... + 816198.

It is an arithmetic number, because the mean of its divisors is an integer number (3264768).

Almost surely, 2^11426681 is an apocalyptic number.

It is an amenable number.

11426681 is a deficient number, since it is larger than the sum of its proper divisors (1632391).

11426681 is an equidigital number, since it uses as much as digits as its factorization.

11426681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632390.

The product of its digits is 2304, while the sum is 29.

The square root of 11426681 is about 3380.3374091945. The cubic root of 11426681 is about 225.2371557054.

The spelling of 11426681 in words is "eleven million, four hundred twenty-six thousand, six hundred eighty-one".