20879193 has 8 divisors (see below), whose sum is σ = 29049408. Its totient is φ = 13314224.

The previous prime is 20879167. The next prime is 20879203. The reversal of 20879193 is 39197802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20879193 - 2⁵ = 20879161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20879113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151230 + ... + 151367.

It is an arithmetic number, because the mean of its divisors is an integer number (3631176).

Almost surely, 2^20879193 is an apocalyptic number.

20879193 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20879193 is a deficient number, since it is larger than the sum of its proper divisors (8170215).

20879193 is a wasteful number, since it uses less digits than its factorization.

20879193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302623.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 20879193 is about 4569.3755590890. The cubic root of 20879193 is about 275.3623564874.

It can be divided in two parts, 208 and 79193, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 20879193 in words is "twenty million, eight hundred seventy-nine thousand, one hundred ninety-three".