20703556 has 12 divisors (see below), whose sum is σ = 36295168. Its totient is φ = 10333512.

The previous prime is 20703541. The next prime is 20703563. The reversal of 20703556 is 65530702.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1836 + ... + 6691.

Almost surely, 2^20703556 is an apocalyptic number.

It is an amenable number.

20703556 is a deficient number, since it is larger than the sum of its proper divisors (15591612).

20703556 is a wasteful number, since it uses less digits than its factorization.

20703556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9138 (or 9136 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 20703556 is about 4550.1160424763. The cubic root of 20703556 is about 274.5880598205.

The spelling of 20703556 in words is "twenty million, seven hundred three thousand, five hundred fifty-six".