20763023 has 4 divisors (see below), whose sum is σ = 21245928. Its totient is φ = 20280120.

The previous prime is 20763019. The next prime is 20763047. The reversal of 20763023 is 32036702.

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 20763023 - 2² = 20763019 is a prime.

It is a super-2 number, since 2×20763023² = 862206248197058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20763023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20763013) 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, 241388 + ... + 241473.

It is an arithmetic number, because the mean of its divisors is an integer number (5311482).

Almost surely, 2^20763023 is an apocalyptic number.

20763023 is a deficient number, since it is larger than the sum of its proper divisors (482905).

20763023 is an equidigital number, since it uses as much as digits as its factorization.

20763023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482904.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 20763023 is about 4556.6460253129. The cubic root of 20763023 is about 274.8507090508.

Adding to 20763023 its reverse (32036702), we get a palindrome (52799725).

The spelling of 20763023 in words is "twenty million, seven hundred sixty-three thousand, twenty-three".