20714189 has 4 divisors (see below), whose sum is σ = 21023424. Its totient is φ = 20404956.

The previous prime is 20714171. The next prime is 20714209. The reversal of 20714189 is 98141702.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98141702 = 2 ⋅49070851.

It is a cyclic number.

It is not a de Polignac number, because 20714189 - 2¹² = 20710093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20714119) 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, 154517 + ... + 154650.

It is an arithmetic number, because the mean of its divisors is an integer number (5255856).

Almost surely, 2^20714189 is an apocalyptic number.

It is an amenable number.

20714189 is a deficient number, since it is larger than the sum of its proper divisors (309235).

20714189 is an equidigital number, since it uses as much as digits as its factorization.

20714189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309234.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 20714189 is about 4551.2843242320. The cubic root of 20714189 is about 274.6350597199.

The spelling of 20714189 in words is "twenty million, seven hundred fourteen thousand, one hundred eighty-nine".