20710804 has 6 divisors (see below), whose sum is σ = 36243914. Its totient is φ = 10355400.

The previous prime is 20710793. The next prime is 20710831. The reversal of 20710804 is 40801702.

It can be written as a sum of positive squares in only one way, i.e., 12588304 + 8122500 = 3548^2 + 2850^2 .

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, 2588847 + ... + 2588854.

Almost surely, 2^20710804 is an apocalyptic number.

It is an amenable number.

20710804 is a deficient number, since it is larger than the sum of its proper divisors (15533110).

20710804 is a wasteful number, since it uses less digits than its factorization.

20710804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177705 (or 5177703 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 20710804 is about 4550.9124359847. The cubic root of 20710804 is about 274.6200991161.

It can be divided in two parts, 207 and 10804, that added together give a palindrome (11011).

The spelling of 20710804 in words is "twenty million, seven hundred ten thousand, eight hundred four".