11992807 has 4 divisors (see below), whose sum is σ = 12002256. Its totient is φ = 11983360.

The previous prime is 11992793. The next prime is 11992811. The reversal of 11992807 is 70829911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70829911 = 2221 ⋅31891.

It is a cyclic number.

It is not a de Polignac number, because 11992807 - 2⁷ = 11992679 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 (11992817) 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, 2458 + ... + 5479.

It is an arithmetic number, because the mean of its divisors is an integer number (3000564).

Almost surely, 2^11992807 is an apocalyptic number.

11992807 is a deficient number, since it is larger than the sum of its proper divisors (9449).

11992807 is an equidigital number, since it uses as much as digits as its factorization.

11992807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9448.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 11992807 is about 3463.0632393879. The cubic root of 11992807 is about 228.8970953147.

The spelling of 11992807 in words is "eleven million, nine hundred ninety-two thousand, eight hundred seven".