20876049 has 20 divisors (see below), whose sum is σ = 31518564. Its totient is φ = 13768704.

The previous prime is 20876047. The next prime is 20876057. The reversal of 20876049 is 94067802.

It can be written as a sum of positive squares in 2 ways, for example, as 11512449 + 9363600 = 3393^2 + 3060^2 .

It is not a de Polignac number, because 20876049 - 2¹ = 20876047 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20876047) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6529 + ... + 9185.

Almost surely, 2^20876049 is an apocalyptic number.

It is an amenable number.

20876049 is a deficient number, since it is larger than the sum of its proper divisors (10642515).

20876049 is an equidigital number, since it uses as much as digits as its factorization.

20876049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766 (or 2757 counting only the distinct ones).

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

The square root of 20876049 is about 4569.0315166346. The cubic root of 20876049 is about 275.3485343902.

The spelling of 20876049 in words is "twenty million, eight hundred seventy-six thousand, forty-nine".