11922661 has 8 divisors (see below), whose sum is σ = 12839040. Its totient is φ = 11030208.

The previous prime is 11922649. The next prime is 11922667. The reversal of 11922661 is 16622911.

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

It is a cyclic number.

It is not a de Polignac number, because 11922661 - 2⁵ = 11922629 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 (11922667) 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, 4941 + ... + 6946.

It is an arithmetic number, because the mean of its divisors is an integer number (1604880).

Almost surely, 2^11922661 is an apocalyptic number.

It is an amenable number.

11922661 is a deficient number, since it is larger than the sum of its proper divisors (916379).

11922661 is a wasteful number, since it uses less digits than its factorization.

11922661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11963.

The product of its digits is 1296, while the sum is 28.

The square root of 11922661 is about 3452.9206477995. The cubic root of 11922661 is about 228.4499488969.

The spelling of 11922661 in words is "eleven million, nine hundred twenty-two thousand, six hundred sixty-one".