16813393 has 8 divisors (see below), whose sum is σ = 17131968. Its totient is φ = 16497744.

The previous prime is 16813373. The next prime is 16813399. The reversal of 16813393 is 39331861.

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

It is not a de Polignac number, because 16813393 - 2⁵ = 16813361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16813399) 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, 13255 + ... + 14467.

It is an arithmetic number, because the mean of its divisors is an integer number (2141496).

Almost surely, 2^16813393 is an apocalyptic number.

It is an amenable number.

16813393 is a deficient number, since it is larger than the sum of its proper divisors (318575).

16813393 is a wasteful number, since it uses less digits than its factorization.

16813393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463.

The product of its digits is 11664, while the sum is 34.

The square root of 16813393 is about 4100.4137596101. The cubic root of 16813393 is about 256.1838736373.

The spelling of 16813393 in words is "sixteen million, eight hundred thirteen thousand, three hundred ninety-three".