16909413 has 4 divisors (see below), whose sum is σ = 22545888. Its totient is φ = 11272940.

The previous prime is 16909391. The next prime is 16909447. The reversal of 16909413 is 31490961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16909413 - 2⁹ = 16908901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16909463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2818233 + ... + 2818238.

It is an arithmetic number, because the mean of its divisors is an integer number (5636472).

Almost surely, 2^16909413 is an apocalyptic number.

It is an amenable number.

16909413 is a deficient number, since it is larger than the sum of its proper divisors (5636475).

16909413 is an equidigital number, since it uses as much as digits as its factorization.

16909413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636474.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 16909413 is about 4112.1056649848. The cubic root of 16909413 is about 256.6706303618.

The spelling of 16909413 in words is "sixteen million, nine hundred nine thousand, four hundred thirteen".