32389421 has 4 divisors (see below), whose sum is σ = 32495232. Its totient is φ = 32283612.

The previous prime is 32389411. The next prime is 32389429. The reversal of 32389421 is 12498323.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32389421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32389429) 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, 52445 + ... + 53058.

It is an arithmetic number, because the mean of its divisors is an integer number (8123808).

Almost surely, 2^32389421 is an apocalyptic number.

It is an amenable number.

32389421 is a deficient number, since it is larger than the sum of its proper divisors (105811).

32389421 is a wasteful number, since it uses less digits than its factorization.

32389421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105810.

The product of its digits is 10368, while the sum is 32.

The square root of 32389421 is about 5691.1704420093. The cubic root of 32389421 is about 318.7628698635.

The spelling of 32389421 in words is "thirty-two million, three hundred eighty-nine thousand, four hundred twenty-one".