16413949 has 2 divisors, whose sum is σ = 16413950. Its totient is φ = 16413948.

The previous prime is 16413931. The next prime is 16413953. The reversal of 16413949 is 94931461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16402500 + 11449 = 4050^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 16413949 - 2⁹ = 16413437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16413049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8206974 + 8206975.

It is an arithmetic number, because the mean of its divisors is an integer number (8206975).

Almost surely, 2^16413949 is an apocalyptic number.

It is an amenable number.

16413949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16413949 is an equidigital number, since it uses as much as digits as its factorization.

16413949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 16413949 is about 4051.4132102268. The cubic root of 16413949 is about 254.1388302161.

The spelling of 16413949 in words is "sixteen million, four hundred thirteen thousand, nine hundred forty-nine".