11651992 has 16 divisors (see below), whose sum is σ = 23833800. Its totient is φ = 5296320.

The previous prime is 11651977. The next prime is 11651993. The reversal of 11651992 is 29915611.

It is a happy number.

11651992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11651993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66117 + ... + 66292.

Almost surely, 2^11651992 is an apocalyptic number.

It is an amenable number.

11651992 is an abundant number, since it is smaller than the sum of its proper divisors (12181808).

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

11651992 is a wasteful number, since it uses less digits than its factorization.

11651992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132426 (or 132422 counting only the distinct ones).

The product of its digits is 4860, while the sum is 34.

The square root of 11651992 is about 3413.5014281526. The cubic root of 11651992 is about 226.7079375062.

It can be divided in two parts, 116519 and 92, that added together give a palindrome (116611).

The spelling of 11651992 in words is "eleven million, six hundred fifty-one thousand, nine hundred ninety-two".