20676776 has 8 divisors (see below), whose sum is σ = 38768970. Its totient is φ = 10338384.

The previous prime is 20676707. The next prime is 20676781. The reversal of 20676776 is 67767602.

It can be written as a sum of positive squares in only one way, i.e., 15792676 + 4884100 = 3974^2 + 2210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1292291 + ... + 1292306.

Almost surely, 2^20676776 is an apocalyptic number.

It is an amenable number.

20676776 is a deficient number, since it is larger than the sum of its proper divisors (18092194).

20676776 is a wasteful number, since it uses less digits than its factorization.

20676776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584603 (or 2584599 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 20676776 is about 4547.1723081493. The cubic root of 20676776 is about 274.4696157379.

The spelling of 20676776 in words is "twenty million, six hundred seventy-six thousand, seven hundred seventy-six".