11922557 has 8 divisors (see below), whose sum is σ = 12583200. Its totient is φ = 11265264.

The previous prime is 11922553. The next prime is 11922563. The reversal of 11922557 is 75522911.

It is a happy number.

11922557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11922557 - 2² = 11922553 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 (11922553) 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, 10619 + ... + 11687.

It is an arithmetic number, because the mean of its divisors is an integer number (1572900).

Almost surely, 2^11922557 is an apocalyptic number.

It is an amenable number.

11922557 is a deficient number, since it is larger than the sum of its proper divisors (660643).

11922557 is a wasteful number, since it uses less digits than its factorization.

11922557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675.

The product of its digits is 6300, while the sum is 32.

The square root of 11922557 is about 3452.9055880519. The cubic root of 11922557 is about 228.4492846474.

The spelling of 11922557 in words is "eleven million, nine hundred twenty-two thousand, five hundred fifty-seven".