20976802 has 72 divisors (see below), whose sum is σ = 42301980. Its totient is φ = 7761600.

The previous prime is 20976797. The next prime is 20976821. The reversal of 20976802 is 20867902.

It can be written as a sum of positive squares in 2 ways, for example, as 19263321 + 1713481 = 4389^2 + 1309^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 343852 + ... + 343912.

Almost surely, 2^20976802 is an apocalyptic number.

20976802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20976802 is an abundant number, since it is smaller than the sum of its proper divisors (21325178).

20976802 is a wasteful number, since it uses less digits than its factorization.

20976802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20976802 is about 4580.0438862526. The cubic root of 20976802 is about 275.7907904884.

Subtracting from 20976802 its reverse (20867902), we obtain a square (108900 = 330²).

The spelling of 20976802 in words is "twenty million, nine hundred seventy-six thousand, eight hundred two".