20063493 has 6 divisors (see below), whose sum is σ = 28980614. Its totient is φ = 13375656.

The previous prime is 20063471. The next prime is 20063497. The reversal of 20063493 is 39436002.

20063493 is a `hidden beast` number, since 20 + 0 + 634 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15539364 + 4524129 = 3942^2 + 2127^2 .

It is not a de Polignac number, because 20063493 - 2²⁴ = 3286277 is a prime.

It is a super-2 number, since 2×20063493² = 805087502722098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20063497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114630 + ... + 1114647.

Almost surely, 2^20063493 is an apocalyptic number.

It is an amenable number.

20063493 is a deficient number, since it is larger than the sum of its proper divisors (8917121).

20063493 is a wasteful number, since it uses less digits than its factorization.

20063493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229283 (or 2229280 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 20063493 is about 4479.2290631313. The cubic root of 20063493 is about 271.7287024241.

Adding to 20063493 its reverse (39436002), we get a palindrome (59499495).

The spelling of 20063493 in words is "twenty million, sixty-three thousand, four hundred ninety-three".