20802716 has 24 divisors (see below), whose sum is σ = 40279680. Its totient is φ = 9321200.

The previous prime is 20802709. The next prime is 20802757. The reversal of 20802716 is 61720802.

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, 206 + ... + 6453.

It is an arithmetic number, because the mean of its divisors is an integer number (1678320).

Almost surely, 2^20802716 is an apocalyptic number.

It is an amenable number.

20802716 is a deficient number, since it is larger than the sum of its proper divisors (19476964).

20802716 is a wasteful number, since it uses less digits than its factorization.

20802716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745 (or 6743 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 20802716 is about 4560.9994518746. Note that the first 3 decimals coincide. The cubic root of 20802716 is about 275.0257430446.

The spelling of 20802716 in words is "twenty million, eight hundred two thousand, seven hundred sixteen".