11286621 has 12 divisors (see below), whose sum is σ = 16907072. Its totient is φ = 7524252.

The previous prime is 11286599. The next prime is 11286631. The reversal of 11286621 is 12668211.

11286621 is a `hidden beast` number, since 11 + 28 + 6 + 621 = 666.

11286621 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11286621 - 2⁶ = 11286557 is a prime.

It is a super-3 number, since 3×11286621³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11286631) 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, 22981 + ... + 23466.

Almost surely, 2^11286621 is an apocalyptic number.

It is an amenable number.

11286621 is a deficient number, since it is larger than the sum of its proper divisors (5620451).

11286621 is an frugal number, since it uses more digits than its factorization.

11286621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46462 (or 46450 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 11286621 is about 3359.5566671810. The cubic root of 11286621 is about 224.3131051359.

The spelling of 11286621 in words is "eleven million, two hundred eighty-six thousand, six hundred twenty-one".