20796875 has 28 divisors (see below), whose sum is σ = 28593384. Its totient is φ = 15125000.

The previous prime is 20796871. The next prime is 20796901. The reversal of 20796875 is 57869702.

The cubic root of 20796875 is 275.

It is a perfect power (a cube), and thus also a powerful number.

It is not a de Polignac number, because 20796875 - 2² = 20796871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20796871) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1890620 + ... + 1890630.

Almost surely, 2^20796875 is an apocalyptic number.

20796875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20796875 is a deficient number, since it is larger than the sum of its proper divisors (7796509).

20796875 is an frugal number, since it uses more digits than its factorization.

20796875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 16 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 20796875 is about 4560.3590867387.

Multiplying 20796875 by its sum of digits (44), we get a square (915062500 = 30250²).

The spelling of 20796875 in words is "twenty million, seven hundred ninety-six thousand, eight hundred seventy-five".