20463693 has 4 divisors (see below), whose sum is σ = 27284928. Its totient is φ = 13642460.

The previous prime is 20463683. The next prime is 20463739. The reversal of 20463693 is 39636402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20463693 - 2⁵ = 20463661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20463673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3410613 + ... + 3410618.

It is an arithmetic number, because the mean of its divisors is an integer number (6821232).

Almost surely, 2^20463693 is an apocalyptic number.

It is an amenable number.

20463693 is a deficient number, since it is larger than the sum of its proper divisors (6821235).

20463693 is an equidigital number, since it uses as much as digits as its factorization.

20463693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821234.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 20463693 is about 4523.6813548260. The cubic root of 20463693 is about 273.5235160985.

The spelling of 20463693 in words is "twenty million, four hundred sixty-three thousand, six hundred ninety-three".