16899617 has 4 divisors (see below), whose sum is σ = 19313856. Its totient is φ = 14485380.

The previous prime is 16899593. The next prime is 16899629. The reversal of 16899617 is 71699861.

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 not a de Polignac number, because 16899617 - 2¹⁰ = 16898593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16899647) 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, 1207109 + ... + 1207122.

It is an arithmetic number, because the mean of its divisors is an integer number (4828464).

Almost surely, 2^16899617 is an apocalyptic number.

It is an amenable number.

16899617 is a deficient number, since it is larger than the sum of its proper divisors (2414239).

16899617 is an equidigital number, since it uses as much as digits as its factorization.

16899617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414238.

The product of its digits is 163296, while the sum is 47.

The square root of 16899617 is about 4110.9143751725. The cubic root of 16899617 is about 256.6210557808.

The spelling of 16899617 in words is "sixteen million, eight hundred ninety-nine thousand, six hundred seventeen".