19875323 has 4 divisors (see below), whose sum is σ = 21404208. Its totient is φ = 18346440.

The previous prime is 19875319. The next prime is 19875341. The reversal of 19875323 is 32357891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32357891 = 823 ⋅39317.

It is a cyclic number.

It is not a de Polignac number, because 19875323 - 2² = 19875319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19875343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764423 + ... + 764448.

It is an arithmetic number, because the mean of its divisors is an integer number (5351052).

Almost surely, 2^19875323 is an apocalyptic number.

19875323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19875323 is a deficient number, since it is larger than the sum of its proper divisors (1528885).

19875323 is a wasteful number, since it uses less digits than its factorization.

19875323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528884.

The product of its digits is 45360, while the sum is 38.

The square root of 19875323 is about 4458.1748507657. The cubic root of 19875323 is about 270.8765431229.

The spelling of 19875323 in words is "nineteen million, eight hundred seventy-five thousand, three hundred twenty-three".