16677793 has 12 divisors (see below), whose sum is σ = 18431140. Its totient is φ = 15079680.

The previous prime is 16677781. The next prime is 16677803. The reversal of 16677793 is 39777661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10387729 + 6290064 = 3223^2 + 2508^2 .

It is not a de Polignac number, because 16677793 - 2⁹ = 16677281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16677733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40573 + ... + 40981.

Almost surely, 2^16677793 is an apocalyptic number.

It is an amenable number.

16677793 is a deficient number, since it is larger than the sum of its proper divisors (1753347).

16677793 is a wasteful number, since it uses less digits than its factorization.

16677793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 757 counting only the distinct ones).

The product of its digits is 333396, while the sum is 46.

The square root of 16677793 is about 4083.8453692568. The cubic root of 16677793 is about 255.4933062483.

The spelling of 16677793 in words is "sixteen million, six hundred seventy-seven thousand, seven hundred ninety-three".