11992765 has 4 divisors (see below), whose sum is σ = 14391324. Its totient is φ = 9594208.

The previous prime is 11992741. The next prime is 11992793. The reversal of 11992765 is 56729911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8048569 + 3944196 = 2837^2 + 1986^2 .

It is a cyclic number.

It is not a de Polignac number, because 11992765 - 2⁵ = 11992733 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent 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, 1199272 + ... + 1199281.

It is an arithmetic number, because the mean of its divisors is an integer number (3597831).

Almost surely, 2^11992765 is an apocalyptic number.

It is an amenable number.

11992765 is a deficient number, since it is larger than the sum of its proper divisors (2398559).

11992765 is an equidigital number, since it uses as much as digits as its factorization.

11992765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398558.

The product of its digits is 34020, while the sum is 40.

The square root of 11992765 is about 3463.0571753871. The cubic root of 11992765 is about 228.8968281076.

The spelling of 11992765 in words is "eleven million, nine hundred ninety-two thousand, seven hundred sixty-five".