16820713 has 8 divisors (see below), whose sum is σ = 20702528. Its totient is φ = 13308624.

The previous prime is 16820707. The next prime is 16820717. The reversal of 16820713 is 31702861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-16820713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16820717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92331 + ... + 92512.

It is an arithmetic number, because the mean of its divisors is an integer number (2587816).

Almost surely, 2^16820713 is an apocalyptic number.

16820713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16820713 is a deficient number, since it is larger than the sum of its proper divisors (3881815).

16820713 is a wasteful number, since it uses less digits than its factorization.

16820713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184863.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 16820713 is about 4101.3062553289. The cubic root of 16820713 is about 256.2210462626.

The spelling of 16820713 in words is "sixteen million, eight hundred twenty thousand, seven hundred thirteen".