32023021 has 4 divisors (see below), whose sum is σ = 32082112. Its totient is φ = 31963932.

The previous prime is 32023007. The next prime is 32023039. The reversal of 32023021 is 12032023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12032023 = 827 ⋅14549.

It is a cyclic number.

It is not a de Polignac number, because 32023021 - 2¹¹ = 32020973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32022992 and 32023010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32023051) 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, 28725 + ... + 29818.

It is an arithmetic number, because the mean of its divisors is an integer number (8020528).

Almost surely, 2^32023021 is an apocalyptic number.

It is an amenable number.

32023021 is a deficient number, since it is larger than the sum of its proper divisors (59091).

32023021 is an equidigital number, since it uses as much as digits as its factorization.

32023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59090.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 32023021 is about 5658.8886718153. Note that the first 3 decimals coincide. The cubic root of 32023021 is about 317.5563245601.

Adding to 32023021 its reverse (12032023), we get a palindrome (44055044).

The spelling of 32023021 in words is "thirty-two million, twenty-three thousand, twenty-one".