20968084 has 6 divisors (see below), whose sum is σ = 36694154. Its totient is φ = 10484040.

The previous prime is 20968049. The next prime is 20968091. The reversal of 20968084 is 48086902.

It can be written as a sum of positive squares in only one way, i.e., 20958084 + 10000 = 4578^2 + 100^2 .

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, 2621007 + ... + 2621014.

Almost surely, 2^20968084 is an apocalyptic number.

It is an amenable number.

20968084 is a deficient number, since it is larger than the sum of its proper divisors (15726070).

20968084 is a wasteful number, since it uses less digits than its factorization.

20968084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242025 (or 5242023 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 20968084 is about 4579.0920497409. The cubic root of 20968084 is about 275.7525787967.

It can be divided in two parts, 209680 and 84, that added together give a square (209764 = 458²).

The spelling of 20968084 in words is "twenty million, nine hundred sixty-eight thousand, eighty-four".