11897922 has 8 divisors (see below), whose sum is σ = 23795856. Its totient is φ = 3965972.

The previous prime is 11897911. The next prime is 11897939. The reversal of 11897922 is 22979811.

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

11897922 is an admirable number.

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, 991488 + ... + 991499.

It is an arithmetic number, because the mean of its divisors is an integer number (2974482).

Almost surely, 2^11897922 is an apocalyptic number.

11897922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11897922 is a wasteful number, since it uses less digits than its factorization.

11897922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982992.

The product of its digits is 18144, while the sum is 39.

The square root of 11897922 is about 3449.3364579293. The cubic root of 11897922 is about 228.2918316009.

The spelling of 11897922 in words is "eleven million, eight hundred ninety-seven thousand, nine hundred twenty-two".