11426661 has 12 divisors (see below), whose sum is σ = 16617900. Its totient is φ = 7565760.

The previous prime is 11426647. The next prime is 11426663. The reversal of 11426661 is 16662411.

It can be written as a sum of positive squares in 2 ways, for example, as 3218436 + 8208225 = 1794^2 + 2865^2 .

It is not a de Polignac number, because 11426661 - 2⁵ = 11426629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11426663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2920 + ... + 5601.

It is an arithmetic number, because the mean of its divisors is an integer number (1384825).

Almost surely, 2^11426661 is an apocalyptic number.

It is an amenable number.

11426661 is a deficient number, since it is larger than the sum of its proper divisors (5191239).

11426661 is a wasteful number, since it uses less digits than its factorization.

11426661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8676 (or 8673 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 11426661 is about 3380.3344509087. The cubic root of 11426661 is about 225.2370242952.

The spelling of 11426661 in words is "eleven million, four hundred twenty-six thousand, six hundred sixty-one".