11872961 has 2 divisors, whose sum is σ = 11872962. Its totient is φ = 11872960.

The previous prime is 11872951. The next prime is 11873011. The reversal of 11872961 is 16927811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 414736 = 3385^2 + 644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11872961 is a prime.

It is not a weakly prime, because it can be changed into another prime (11872951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5936480 + 5936481.

It is an arithmetic number, because the mean of its divisors is an integer number (5936481).

Almost surely, 2^11872961 is an apocalyptic number.

It is an amenable number.

11872961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11872961 is an equidigital number, since it uses as much as digits as its factorization.

11872961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 35.

The square root of 11872961 is about 3445.7163261070. The cubic root of 11872961 is about 228.1320731153.

The spelling of 11872961 in words is "eleven million, eight hundred seventy-two thousand, nine hundred sixty-one".