20364623 has 8 divisors (see below), whose sum is σ = 21605040. Its totient is φ = 19128960.

The previous prime is 20364571. The next prime is 20364649. The reversal of 20364623 is 32646302.

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

It is a cyclic number.

It is not a de Polignac number, because 20364623 - 2⁶ = 20364559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20364592 and 20364601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364653) 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, 11753 + ... + 13373.

It is an arithmetic number, because the mean of its divisors is an integer number (2700630).

Almost surely, 2^20364623 is an apocalyptic number.

20364623 is a deficient number, since it is larger than the sum of its proper divisors (1240417).

20364623 is a wasteful number, since it uses less digits than its factorization.

20364623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 20364623 is about 4512.7179171759. The cubic root of 20364623 is about 273.0814026417.

The spelling of 20364623 in words is "twenty million, three hundred sixty-four thousand, six hundred twenty-three".