11900771 has 2 divisors, whose sum is σ = 11900772. Its totient is φ = 11900770.

The previous prime is 11900767. The next prime is 11900803. The reversal of 11900771 is 17700911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11900771 - 2² = 11900767 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11900771.

It is not a weakly prime, because it can be changed into another prime (11900711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5950385 + 5950386.

It is an arithmetic number, because the mean of its divisors is an integer number (5950386).

Almost surely, 2^11900771 is an apocalyptic number.

11900771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11900771 is an equidigital number, since it uses as much as digits as its factorization.

11900771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 26.

The square root of 11900771 is about 3449.7494111892. The cubic root of 11900771 is about 228.3100519120.

The spelling of 11900771 in words is "eleven million, nine hundred thousand, seven hundred seventy-one".