20832775 has 12 divisors (see below), whose sum is σ = 26666944. Its totient is φ = 16128000.

The previous prime is 20832767. The next prime is 20832821. The reversal of 20832775 is 57723802.

It is not a de Polignac number, because 20832775 - 2³ = 20832767 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20832775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12666 + ... + 14215.

Almost surely, 2^20832775 is an apocalyptic number.

20832775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20832775 is a deficient number, since it is larger than the sum of its proper divisors (5834169).

20832775 is a wasteful number, since it uses less digits than its factorization.

20832775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26922 (or 26917 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 20832775 is about 4564.2934831143. The cubic root of 20832775 is about 275.1581459512.

The spelling of 20832775 in words is "twenty million, eight hundred thirty-two thousand, seven hundred seventy-five".