16720604 has 12 divisors (see below), whose sum is σ = 29357328. Its totient is φ = 8332800.

The previous prime is 16720601. The next prime is 16720607. The reversal of 16720604 is 40602761.

It is an interprime number because it is at equal distance from previous prime (16720601) and next prime (16720607).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16720601) 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, 5477 + ... + 7964.

It is an arithmetic number, because the mean of its divisors is an integer number (2446444).

Almost surely, 2^16720604 is an apocalyptic number.

It is an amenable number.

16720604 is a deficient number, since it is larger than the sum of its proper divisors (12636724).

16720604 is a wasteful number, since it uses less digits than its factorization.

16720604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13756 (or 13754 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 16720604 is about 4089.0835158994. The cubic root of 16720604 is about 255.7117319964.

The spelling of 16720604 in words is "sixteen million, seven hundred twenty thousand, six hundred four".