20046879 has 16 divisors (see below), whose sum is σ = 30261600. Its totient is φ = 13111488.

The previous prime is 20046841. The next prime is 20046913. The reversal of 20046879 is 97864002.

It is not a de Polignac number, because 20046879 - 2¹³ = 20038687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046809) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5574 + ... + 8435.

It is an arithmetic number, because the mean of its divisors is an integer number (1891350).

Almost surely, 2^20046879 is an apocalyptic number.

20046879 is a deficient number, since it is larger than the sum of its proper divisors (10214721).

20046879 is a wasteful number, since it uses less digits than its factorization.

20046879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14071 (or 14065 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20046879 is about 4477.3741188335. The cubic root of 20046879 is about 271.6536781442.

The spelling of 20046879 in words is "twenty million, forty-six thousand, eight hundred seventy-nine".