20384623 has 8 divisors (see below), whose sum is σ = 23838848. Its totient is φ = 17065944.

The previous prime is 20384621. The next prime is 20384657. The reversal of 20384623 is 32648302.

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

It is not a de Polignac number, because 20384623 - 2¹ = 20384621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20384591 and 20384600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20384621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33561 + ... + 34162.

It is an arithmetic number, because the mean of its divisors is an integer number (2979856).

Almost surely, 2^20384623 is an apocalyptic number.

20384623 is a deficient number, since it is larger than the sum of its proper divisors (3454225).

20384623 is an equidigital number, since it uses as much as digits as its factorization.

20384623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67773.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 20384623 is about 4514.9333328411. The cubic root of 20384623 is about 273.1707707104.

The spelling of 20384623 in words is "twenty million, three hundred eighty-four thousand, six hundred twenty-three".