20730676 has 6 divisors (see below), whose sum is σ = 36278690. Its totient is φ = 10365336.

The previous prime is 20730623. The next prime is 20730719. The reversal of 20730676 is 67603702.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 2016400 = 4326^2 + 1420^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2591331 + ... + 2591338.

Almost surely, 2^20730676 is an apocalyptic number.

It is an amenable number.

20730676 is a deficient number, since it is larger than the sum of its proper divisors (15548014).

20730676 is a wasteful number, since it uses less digits than its factorization.

20730676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182673 (or 5182671 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 20730676 is about 4553.0952109527. The cubic root of 20730676 is about 274.7079036284.

The spelling of 20730676 in words is "twenty million, seven hundred thirty thousand, six hundred seventy-six".