16949811 has 16 divisors (see below), whose sum is σ = 23332608. Its totient is φ = 10936800.

The previous prime is 16949809. The next prime is 16949813. The reversal of 16949811 is 11894961.

It is an interprime number because it is at equal distance from previous prime (16949809) and next prime (16949813).

It is not a de Polignac number, because 16949811 - 2¹ = 16949809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16949811.

It is not an unprimeable number, because it can be changed into a prime (16949813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34276 + ... + 34766.

It is an arithmetic number, because the mean of its divisors is an integer number (1458288).

Almost surely, 2^16949811 is an apocalyptic number.

16949811 is a deficient number, since it is larger than the sum of its proper divisors (6382797).

16949811 is a wasteful number, since it uses less digits than its factorization.

16949811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842.

The product of its digits is 15552, while the sum is 39.

The square root of 16949811 is about 4117.0148165874. The cubic root of 16949811 is about 256.8748703239.

The spelling of 16949811 in words is "sixteen million, nine hundred forty-nine thousand, eight hundred eleven".