20313763 has 4 divisors (see below), whose sum is σ = 20511088. Its totient is φ = 20116440.

The previous prime is 20313757. The next prime is 20313767. The reversal of 20313763 is 36731302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20313763 - 2⁵ = 20313731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313767) 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, 98508 + ... + 98713.

It is an arithmetic number, because the mean of its divisors is an integer number (5127772).

Almost surely, 2^20313763 is an apocalyptic number.

20313763 is a deficient number, since it is larger than the sum of its proper divisors (197325).

20313763 is a wasteful number, since it uses less digits than its factorization.

20313763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197324.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 20313763 is about 4507.0792094216. The cubic root of 20313763 is about 272.8538757423.

The spelling of 20313763 in words is "twenty million, three hundred thirteen thousand, seven hundred sixty-three".