11772867 has 4 divisors (see below), whose sum is σ = 15697160. Its totient is φ = 7848576.

The previous prime is 11772847. The next prime is 11772899. The reversal of 11772867 is 76827711.

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

It is not a de Polignac number, because 11772867 - 2⁸ = 11772611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11772847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962142 + ... + 1962147.

It is an arithmetic number, because the mean of its divisors is an integer number (3924290).

Almost surely, 2^11772867 is an apocalyptic number.

11772867 is a deficient number, since it is larger than the sum of its proper divisors (3924293).

11772867 is an equidigital number, since it uses as much as digits as its factorization.

11772867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924292.

The product of its digits is 32928, while the sum is 39.

The square root of 11772867 is about 3431.1611737136. The cubic root of 11772867 is about 227.4891803412.

The spelling of 11772867 in words is "eleven million, seven hundred seventy-two thousand, eight hundred sixty-seven".