20235923 has 8 divisors (see below), whose sum is σ = 20619360. Its totient is φ = 19855360.

The previous prime is 20235911. The next prime is 20235949. The reversal of 20235923 is 32953202.

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 20235923 - 2¹⁰ = 20234899 is a prime.

It is a super-3 number, since 3×20235923³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20235892 and 20235901.

It is not an unprimeable number, because it can be changed into a prime (20235953) 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, 17693 + ... + 18801.

It is an arithmetic number, because the mean of its divisors is an integer number (2577420).

Almost surely, 2^20235923 is an apocalyptic number.

20235923 is a deficient number, since it is larger than the sum of its proper divisors (383437).

20235923 is a wasteful number, since it uses less digits than its factorization.

20235923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 20235923 is about 4498.4356169673. The cubic root of 20235923 is about 272.5049147614.

The spelling of 20235923 in words is "twenty million, two hundred thirty-five thousand, nine hundred twenty-three".