16996249 has 4 divisors (see below), whose sum is σ = 17006080. Its totient is φ = 16986420.

The previous prime is 16996219. The next prime is 16996253. The reversal of 16996249 is 94269961.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16996249 - 2⁷ = 16996121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16996199 and 16996208.

It is not an unprimeable number, because it can be changed into a prime (16996219) 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, 1557 + ... + 6034.

It is an arithmetic number, because the mean of its divisors is an integer number (4251520).

Almost surely, 2^16996249 is an apocalyptic number.

It is an amenable number.

16996249 is a deficient number, since it is larger than the sum of its proper divisors (9831).

16996249 is an equidigital number, since it uses as much as digits as its factorization.

16996249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9830.

The product of its digits is 209952, while the sum is 46.

The square root of 16996249 is about 4122.6507249584. The cubic root of 16996249 is about 257.1092461507.

The spelling of 16996249 in words is "sixteen million, nine hundred ninety-six thousand, two hundred forty-nine".