20879103 has 16 divisors (see below), whose sum is σ = 31898880. Its totient is φ = 11899776.

The previous prime is 20879099. The next prime is 20879107. The reversal of 20879103 is 30197802.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20879099) and next prime (20879107).

It is not a de Polignac number, because 20879103 - 2² = 20879099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20879107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8743 + ... + 10871.

It is an arithmetic number, because the mean of its divisors is an integer number (1993680).

Almost surely, 2^20879103 is an apocalyptic number.

20879103 is a deficient number, since it is larger than the sum of its proper divisors (11019777).

20879103 is a wasteful number, since it uses less digits than its factorization.

20879103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 20879103 is about 4569.3657109056. The cubic root of 20879103 is about 275.3619608360.

The spelling of 20879103 in words is "twenty million, eight hundred seventy-nine thousand, one hundred three".