16413689 has 4 divisors (see below), whose sum is σ = 16486224. Its totient is φ = 16341156.

The previous prime is 16413673. The next prime is 16413707. The reversal of 16413689 is 98631461.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98631461 = 103 ⋅957587.

It is a cyclic number.

It is not a de Polignac number, because 16413689 - 2⁴ = 16413673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16413629) 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 in 3 ways as a sum of consecutive naturals, for example, 35927 + ... + 36380.

It is an arithmetic number, because the mean of its divisors is an integer number (4121556).

Almost surely, 2^16413689 is an apocalyptic number.

It is an amenable number.

16413689 is a deficient number, since it is larger than the sum of its proper divisors (72535).

16413689 is an equidigital number, since it uses as much as digits as its factorization.

16413689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72534.

The product of its digits is 31104, while the sum is 38.

The square root of 16413689 is about 4051.3811225309. The cubic root of 16413689 is about 254.1374883403.

The spelling of 16413689 in words is "sixteen million, four hundred thirteen thousand, six hundred eighty-nine".