20789675 has 6 divisors (see below), whose sum is σ = 25779228. Its totient is φ = 16631720.

The previous prime is 20789669. The next prime is 20789687. The reversal of 20789675 is 57698702.

It is not a de Polignac number, because 20789675 - 2⁶ = 20789611 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 415769 + ... + 415818.

It is an arithmetic number, because the mean of its divisors is an integer number (4296538).

Almost surely, 2^20789675 is an apocalyptic number.

20789675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20789675 is a deficient number, since it is larger than the sum of its proper divisors (4989553).

20789675 is an equidigital number, since it uses as much as digits as its factorization.

20789675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831597 (or 831592 counting only the distinct ones).

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

The square root of 20789675 is about 4559.5696068818. The cubic root of 20789675 is about 274.9682607998.

The spelling of 20789675 in words is "twenty million, seven hundred eighty-nine thousand, six hundred seventy-five".