20023297 has 8 divisors (see below), whose sum is σ = 24230016. Its totient is φ = 16153152.

The previous prime is 20023291. The next prime is 20023307. The reversal of 20023297 is 79232002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84013 + ... + 84250.

It is an arithmetic number, because the mean of its divisors is an integer number (3028752).

Almost surely, 2^20023297 is an apocalyptic number.

It is an amenable number.

20023297 is a deficient number, since it is larger than the sum of its proper divisors (4206719).

20023297 is a wasteful number, since it uses less digits than its factorization.

20023297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168287.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20023297 is about 4474.7398807082. The cubic root of 20023297 is about 271.5471170743.

Adding to 20023297 its reverse (79232002), we get a palindrome (99255299).

The spelling of 20023297 in words is "twenty million, twenty-three thousand, two hundred ninety-seven".