63820023 has 16 divisors (see below), whose sum is σ = 90268416. Its totient is φ = 39968640.

The previous prime is 63820021. The next prime is 63820033. The reversal of 63820023 is 32002836.

It is not a de Polignac number, because 63820023 - 2¹ = 63820021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63819975 and 63820002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63820021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40590 + ... + 42132.

It is an arithmetic number, because the mean of its divisors is an integer number (5641776).

Almost surely, 2^63820023 is an apocalyptic number.

63820023 is a deficient number, since it is larger than the sum of its proper divisors (26448393).

63820023 is a wasteful number, since it uses less digits than its factorization.

63820023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 63820023 is about 7988.7435182261. The cubic root of 63820023 is about 399.6246958939.

Adding to 63820023 its reverse (32002836), we get a palindrome (95822859).

The spelling of 63820023 in words is "sixty-three million, eight hundred twenty thousand, twenty-three".