16649704 has 16 divisors (see below), whose sum is σ = 32062500. Its totient is φ = 8099712.

The previous prime is 16649687. The next prime is 16649753. The reversal of 16649704 is 40794661.

It can be written as a sum of positive squares in 2 ways, for example, as 13032100 + 3617604 = 3610^2 + 1902^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27829 + ... + 28420.

Almost surely, 2^16649704 is an apocalyptic number.

It is an amenable number.

16649704 is a deficient number, since it is larger than the sum of its proper divisors (15412796).

16649704 is a wasteful number, since it uses less digits than its factorization.

16649704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56292 (or 56288 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 16649704 is about 4080.4048818714. The cubic root of 16649704 is about 255.3497903725.

The spelling of 16649704 in words is "sixteen million, six hundred forty-nine thousand, seven hundred four".