11001992 has 16 divisors (see below), whose sum is σ = 21842460. Its totient is φ = 5177344.

The previous prime is 11001983. The next prime is 11002001. The reversal of 11001992 is 29910011.

It is an interprime number because it is at equal distance from previous prime (11001983) and next prime (11002001).

It can be written as a sum of positive squares in 2 ways, for example, as 9449476 + 1552516 = 3074^2 + 1246^2 .

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, 40313 + ... + 40584.

Almost surely, 2^11001992 is an apocalyptic number.

It is an amenable number.

11001992 is a deficient number, since it is larger than the sum of its proper divisors (10840468).

11001992 is a wasteful number, since it uses less digits than its factorization.

11001992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80920 (or 80916 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 11001992 is about 3316.9250820602. The cubic root of 11001992 is about 222.4114329992.

The spelling of 11001992 in words is "eleven million, one thousand, nine hundred ninety-two".