20676605 has 8 divisors (see below), whose sum is σ = 24883200. Its totient is φ = 16493776.

The previous prime is 20676589. The next prime is 20676611. The reversal of 20676605 is 50667602.

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

It is a cyclic number.

It is not a de Polignac number, because 20676605 - 2⁴ = 20676589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3965 + ... + 7554.

It is an arithmetic number, because the mean of its divisors is an integer number (3110400).

Almost surely, 2^20676605 is an apocalyptic number.

It is an amenable number.

20676605 is a deficient number, since it is larger than the sum of its proper divisors (4206595).

20676605 is a wasteful number, since it uses less digits than its factorization.

20676605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11883.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 20676605 is about 4547.1535052162. The cubic root of 20676605 is about 274.4688591010.

The spelling of 20676605 in words is "twenty million, six hundred seventy-six thousand, six hundred five".