20679075 has 36 divisors (see below), whose sum is σ = 37575720. Its totient is φ = 10869120.

The previous prime is 20679067. The next prime is 20679083. The reversal of 20679075 is 57097602.

It is an interprime number because it is at equal distance from previous prime (20679067) and next prime (20679083).

It is not a de Polignac number, because 20679075 - 2³ = 20679067 is a prime.

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 35 ways as a sum of consecutive naturals, for example, 15796 + ... + 17054.

It is an arithmetic number, because the mean of its divisors is an integer number (1043770).

Almost surely, 2^20679075 is an apocalyptic number.

20679075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20679075 is a deficient number, since it is larger than the sum of its proper divisors (16896645).

20679075 is a wasteful number, since it uses less digits than its factorization.

20679075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 20679075 is about 4547.4250955898. The cubic root of 20679075 is about 274.4797878953.

The spelling of 20679075 in words is "twenty million, six hundred seventy-nine thousand, seventy-five".