16826949 has 12 divisors (see below), whose sum is σ = 24368812. Its totient is φ = 11188800.

The previous prime is 16826947. The next prime is 16826959. The reversal of 16826949 is 94962861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2196324 + 14630625 = 1482^2 + 3825^2 .

It is not a de Polignac number, because 16826949 - 2¹ = 16826947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16826941) 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 11 ways as a sum of consecutive naturals, for example, 1569 + ... + 6009.

Almost surely, 2^16826949 is an apocalyptic number.

It is an amenable number.

16826949 is a deficient number, since it is larger than the sum of its proper divisors (7541863).

16826949 is a wasteful number, since it uses less digits than its factorization.

16826949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868 (or 4865 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 16826949 is about 4102.0664304714. The cubic root of 16826949 is about 256.2527055832.

The spelling of 16826949 in words is "sixteen million, eight hundred twenty-six thousand, nine hundred forty-nine".