16479949 has 2 divisors, whose sum is σ = 16479950. Its totient is φ = 16479948.

The previous prime is 16479929. The next prime is 16479971. The reversal of 16479949 is 94997461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12145225 + 4334724 = 3485^2 + 2082^2 .

It is a cyclic number.

It is not a de Polignac number, because 16479949 - 2¹⁷ = 16348877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16479929) 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, 8239974 + 8239975.

It is an arithmetic number, because the mean of its divisors is an integer number (8239975).

Almost surely, 2^16479949 is an apocalyptic number.

It is an amenable number.

16479949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16479949 is an equidigital number, since it uses as much as digits as its factorization.

16479949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 16479949 is about 4059.5503445579. The cubic root of 16479949 is about 254.4790029033.

The spelling of 16479949 in words is "sixteen million, four hundred seventy-nine thousand, nine hundred forty-nine".