20623023 has 24 divisors (see below), whose sum is σ = 32402448. Its totient is φ = 12586752.

The previous prime is 20623003. The next prime is 20623027. The reversal of 20623023 is 32032602.

20623023 is a `hidden beast` number, since 20 + 623 + 0 + 23 = 666.

It is not a de Polignac number, because 20623023 - 2¹⁰ = 20621999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20622987 and 20623005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3840 + ... + 7482.

It is an arithmetic number, because the mean of its divisors is an integer number (1350102).

Almost surely, 2^20623023 is an apocalyptic number.

20623023 is a deficient number, since it is larger than the sum of its proper divisors (11779425).

20623023 is a wasteful number, since it uses less digits than its factorization.

20623023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20623023 is about 4541.2578653937. The cubic root of 20623023 is about 274.2315649477.

Adding to 20623023 its reverse (32032602), we get a palindrome (52655625).

The spelling of 20623023 in words is "twenty million, six hundred twenty-three thousand, twenty-three".