11671992 has 32 divisors (see below), whose sum is σ = 32422800. Its totient is φ = 3890592.

The previous prime is 11671991. The next prime is 11672009. The reversal of 11671992 is 29917611.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11671991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26803 + ... + 27234.

Almost surely, 2^11671992 is an apocalyptic number.

11671992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11671992 is an abundant number, since it is smaller than the sum of its proper divisors (20750808).

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

11671992 is a wasteful number, since it uses less digits than its factorization.

11671992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54052 (or 54042 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 11671992 is about 3416.4297153608. The cubic root of 11671992 is about 226.8375739097.

The spelling of 11671992 in words is "eleven million, six hundred seventy-one thousand, nine hundred ninety-two".