16911449 has 2 divisors, whose sum is σ = 16911450. Its totient is φ = 16911448.

The previous prime is 16911443. The next prime is 16911469. The reversal of 16911449 is 94411961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15366400 + 1545049 = 3920^2 + 1243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16911449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16911443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8455724 + 8455725.

It is an arithmetic number, because the mean of its divisors is an integer number (8455725).

Almost surely, 2^16911449 is an apocalyptic number.

It is an amenable number.

16911449 is a deficient number, since it is larger than the sum of its proper divisors (1).

16911449 is an equidigital number, since it uses as much as digits as its factorization.

16911449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 16911449 is about 4112.3532192651. The cubic root of 16911449 is about 256.6809315360.

It can be divided in two parts, 169 and 11449, that multiplied together give a square (1934881 = 1391²).

The spelling of 16911449 in words is "sixteen million, nine hundred eleven thousand, four hundred forty-nine".