20465713 has 4 divisors (see below), whose sum is σ = 20525040. Its totient is φ = 20406388.

The previous prime is 20465707. The next prime is 20465719. The reversal of 20465713 is 31756402.

20465713 is nontrivially palindromic in base 16.

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 an interprime number because it is at equal distance from previous prime (20465707) and next prime (20465719).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20465713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20465719) 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, 29143 + ... + 29836.

It is an arithmetic number, because the mean of its divisors is an integer number (5131260).

Almost surely, 2^20465713 is an apocalyptic number.

It is an amenable number.

20465713 is a deficient number, since it is larger than the sum of its proper divisors (59327).

20465713 is an equidigital number, since it uses as much as digits as its factorization.

20465713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59326.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20465713 is about 4523.9046188000. The cubic root of 20465713 is about 273.5325157664.

The spelling of 20465713 in words is "twenty million, four hundred sixty-five thousand, seven hundred thirteen".