20475323 has 8 divisors (see below), whose sum is σ = 22542960. Its totient is φ = 18442080.

The previous prime is 20475311. The next prime is 20475337. The reversal of 20475323 is 32357402.

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 20475323 - 2²⁰ = 19426747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20475292 and 20475301.

It is not an unprimeable number, because it can be changed into a prime (20475373) 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, 7340 + ... + 9737.

It is an arithmetic number, because the mean of its divisors is an integer number (2817870).

Almost surely, 2^20475323 is an apocalyptic number.

20475323 is a deficient number, since it is larger than the sum of its proper divisors (2067637).

20475323 is a wasteful number, since it uses less digits than its factorization.

20475323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17197.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 20475323 is about 4524.9666297112. The cubic root of 20475323 is about 273.5753229100.

The spelling of 20475323 in words is "twenty million, four hundred seventy-five thousand, three hundred twenty-three".