20650713 has 4 divisors (see below), whose sum is σ = 27534288. Its totient is φ = 13767140.

The previous prime is 20650691. The next prime is 20650753. The reversal of 20650713 is 31705602.

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 20650713 - 2⁸ = 20650457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20650753) 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, 3441783 + ... + 3441788.

It is an arithmetic number, because the mean of its divisors is an integer number (6883572).

Almost surely, 2^20650713 is an apocalyptic number.

It is an amenable number.

20650713 is a deficient number, since it is larger than the sum of its proper divisors (6883575).

20650713 is an equidigital number, since it uses as much as digits as its factorization.

20650713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6883574.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 20650713 is about 4544.3055575082. The cubic root of 20650713 is about 274.3542446028.

The spelling of 20650713 in words is "twenty million, six hundred fifty thousand, seven hundred thirteen".