11772931 has 2 divisors, whose sum is σ = 11772932. Its totient is φ = 11772930.

The previous prime is 11772911. The next prime is 11772947. The reversal of 11772931 is 13927711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11772931 - 2⁵ = 11772899 is a prime.

It is a super-2 number, since 2×11772931² = 277203808661522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11772893 and 11772902.

It is not a weakly prime, because it can be changed into another prime (11772911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5886465 + 5886466.

It is an arithmetic number, because the mean of its divisors is an integer number (5886466).

Almost surely, 2^11772931 is an apocalyptic number.

11772931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11772931 is an equidigital number, since it uses as much as digits as its factorization.

11772931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 31.

The square root of 11772931 is about 3431.1704999898. The cubic root of 11772931 is about 227.4895925682.

The spelling of 11772931 in words is "eleven million, seven hundred seventy-two thousand, nine hundred thirty-one".