20876485 has 32 divisors (see below), whose sum is σ = 30081024. Its totient is φ = 13608000.

The previous prime is 20876483. The next prime is 20876489. The reversal of 20876485 is 58467802.

It is not a de Polignac number, because 20876485 - 2¹ = 20876483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20876483) 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 31 ways as a sum of consecutive naturals, for example, 76900 + ... + 77170.

It is an arithmetic number, because the mean of its divisors is an integer number (940032).

Almost surely, 2^20876485 is an apocalyptic number.

It is an amenable number.

20876485 is a deficient number, since it is larger than the sum of its proper divisors (9204539).

20876485 is a wasteful number, since it uses less digits than its factorization.

20876485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 20876485 is about 4569.0792289038. The cubic root of 20876485 is about 275.3504512779.

It can be divided in two parts, 208764 and 85, that added together give a square (208849 = 457²).

The spelling of 20876485 in words is "twenty million, eight hundred seventy-six thousand, four hundred eighty-five".