16893609 has 4 divisors (see below), whose sum is σ = 22524816. Its totient is φ = 11262404.

The previous prime is 16893601. The next prime is 16893619. The reversal of 16893609 is 90639861.

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 16893609 - 2³ = 16893601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16893601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815599 + ... + 2815604.

It is an arithmetic number, because the mean of its divisors is an integer number (5631204).

Almost surely, 2^16893609 is an apocalyptic number.

It is an amenable number.

16893609 is a deficient number, since it is larger than the sum of its proper divisors (5631207).

16893609 is an equidigital number, since it uses as much as digits as its factorization.

16893609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631206.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 16893609 is about 4110.1835725427. The cubic root of 16893609 is about 256.5906416390.

The spelling of 16893609 in words is "sixteen million, eight hundred ninety-three thousand, six hundred nine".