11621618 has 8 divisors (see below), whose sum is σ = 17451612. Its totient is φ = 5804416.

The previous prime is 11621609. The next prime is 11621633. The reversal of 11621618 is 81612611.

11621618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11580409 + 41209 = 3403^2 + 203^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455 + ... + 4842.

Almost surely, 2^11621618 is an apocalyptic number.

11621618 is a deficient number, since it is larger than the sum of its proper divisors (5829994).

11621618 is a wasteful number, since it uses less digits than its factorization.

11621618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396.

The product of its digits is 576, while the sum is 26.

The square root of 11621618 is about 3409.0494276264. The cubic root of 11621618 is about 226.5107746809.

The spelling of 11621618 in words is "eleven million, six hundred twenty-one thousand, six hundred eighteen".