20974203 has 12 divisors (see below), whose sum is σ = 30342520. Its totient is φ = 13961376.

The previous prime is 20974193. The next prime is 20974207. The reversal of 20974203 is 30247902.

It is not a de Polignac number, because 20974203 - 2⁵ = 20974171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20974207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6375 + ... + 9087.

Almost surely, 2^20974203 is an apocalyptic number.

20974203 is a deficient number, since it is larger than the sum of its proper divisors (9368317).

20974203 is a wasteful number, since it uses less digits than its factorization.

20974203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578 (or 3575 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20974203 is about 4579.7601465579. The cubic root of 20974203 is about 275.7793999713.

The spelling of 20974203 in words is "twenty million, nine hundred seventy-four thousand, two hundred three".