32000421 has 4 divisors (see below), whose sum is σ = 42667232. Its totient is φ = 21333612.

The previous prime is 32000413. The next prime is 32000447. The reversal of 32000421 is 12400023.

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.

It is not a de Polignac number, because 32000421 - 2³ = 32000413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32000397 and 32000406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32000411) 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, 5333401 + ... + 5333406.

It is an arithmetic number, because the mean of its divisors is an integer number (10666808).

Almost surely, 2^32000421 is an apocalyptic number.

It is an amenable number.

32000421 is a deficient number, since it is larger than the sum of its proper divisors (10666811).

32000421 is a wasteful number, since it uses less digits than its factorization.

32000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666810.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 32000421 is about 5656.8914608644. The cubic root of 32000421 is about 317.4816026705.

Adding to 32000421 its reverse (12400023), we get a palindrome (44400444).

The spelling of 32000421 in words is "thirty-two million, four hundred twenty-one", and thus it is an aban number.