20877703 has 18 divisors (see below), whose sum is σ = 26394648. Its totient is φ = 16164720.

The previous prime is 20877697. The next prime is 20877719. The reversal of 20877703 is 30777802.

It is not a de Polignac number, because 20877703 - 2⁵ = 20877671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20877743) 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 17 ways as a sum of consecutive naturals, for example, 132901 + ... + 133057.

Almost surely, 2^20877703 is an apocalyptic number.

20877703 is a deficient number, since it is larger than the sum of its proper divisors (5516945).

20877703 is an equidigital number, since it uses as much as digits as its factorization.

20877703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 20877703 is about 4569.2125142085. The cubic root of 20877703 is about 275.3558061118.

Subtracting 20877703 from its reverse (30777802), we obtain a palindrome (9900099).

The spelling of 20877703 in words is "twenty million, eight hundred seventy-seven thousand, seven hundred three".