20238693 has 4 divisors (see below), whose sum is σ = 26984928. Its totient is φ = 13492460.

The previous prime is 20238677. The next prime is 20238703. The reversal of 20238693 is 39683202.

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 20238693 - 2⁴ = 20238677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231693) 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, 3373113 + ... + 3373118.

It is an arithmetic number, because the mean of its divisors is an integer number (6746232).

Almost surely, 2^20238693 is an apocalyptic number.

It is an amenable number.

20238693 is a deficient number, since it is larger than the sum of its proper divisors (6746235).

20238693 is an equidigital number, since it uses as much as digits as its factorization.

20238693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6746234.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20238693 is about 4498.7434912429. The cubic root of 20238693 is about 272.5173481647.

The spelling of 20238693 in words is "twenty million, two hundred thirty-eight thousand, six hundred ninety-three".