11617811 has 2 divisors, whose sum is σ = 11617812. Its totient is φ = 11617810.

The previous prime is 11617807. The next prime is 11617849. The reversal of 11617811 is 11871611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11617811 - 2² = 11617807 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11617891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5808905 + 5808906.

It is an arithmetic number, because the mean of its divisors is an integer number (5808906).

Almost surely, 2^11617811 is an apocalyptic number.

11617811 is a deficient number, since it is larger than the sum of its proper divisors (1).

11617811 is an equidigital number, since it uses as much as digits as its factorization.

11617811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 26.

The square root of 11617811 is about 3408.4910150974. The cubic root of 11617811 is about 226.4860385757.

The spelling of 11617811 in words is "eleven million, six hundred seventeen thousand, eight hundred eleven".