20368923 has 8 divisors (see below), whose sum is σ = 27821136. Its totient is φ = 13248000.

The previous prime is 20368919. The next prime is 20368927. The reversal of 20368923 is 32986302.

It is an interprime number because it is at equal distance from previous prime (20368919) and next prime (20368927).

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

It is not a de Polignac number, because 20368923 - 2² = 20368919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20368927) 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, 82678 + ... + 82923.

It is an arithmetic number, because the mean of its divisors is an integer number (3477642).

Almost surely, 2^20368923 is an apocalyptic number.

20368923 is a deficient number, since it is larger than the sum of its proper divisors (7452213).

20368923 is a wasteful number, since it uses less digits than its factorization.

20368923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165645.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20368923 is about 4513.1943233147. The cubic root of 20368923 is about 273.1006217125.

The spelling of 20368923 in words is "twenty million, three hundred sixty-eight thousand, nine hundred twenty-three".