20263623 has 8 divisors (see below), whose sum is σ = 27039600. Its totient is φ = 13498368.

The previous prime is 20263619. The next prime is 20263631. The reversal of 20263623 is 32636202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20263623 - 2² = 20263619 is a prime.

It is a super-2 number, since 2×20263623² = 821228834172258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20263593 and 20263602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20263603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4423 + ... + 7751.

It is an arithmetic number, because the mean of its divisors is an integer number (3379950).

Almost surely, 2^20263623 is an apocalyptic number.

20263623 is a deficient number, since it is larger than the sum of its proper divisors (6775977).

20263623 is a wasteful number, since it uses less digits than its factorization.

20263623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 20263623 is about 4501.5134121760. The cubic root of 20263623 is about 272.6291977761.

Adding to 20263623 its reverse (32636202), we get a palindrome (52899825).

The spelling of 20263623 in words is "twenty million, two hundred sixty-three thousand, six hundred twenty-three".