32319421 has 4 divisors (see below), whose sum is σ = 32334172. Its totient is φ = 32304672.

The previous prime is 32319407. The next prime is 32319451. The reversal of 32319421 is 12491323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 31696900 = 789^2 + 5630^2 .

It is a cyclic number.

It is not a de Polignac number, because 32319421 - 2¹⁷ = 32188349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32319401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3360 + ... + 8713.

It is an arithmetic number, because the mean of its divisors is an integer number (8083543).

Almost surely, 2^32319421 is an apocalyptic number.

It is an amenable number.

32319421 is a deficient number, since it is larger than the sum of its proper divisors (14751).

32319421 is a wasteful number, since it uses less digits than its factorization.

32319421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14750.

The product of its digits is 1296, while the sum is 25.

The square root of 32319421 is about 5685.0172383204. The cubic root of 32319421 is about 318.5330675176.

The spelling of 32319421 in words is "thirty-two million, three hundred nineteen thousand, four hundred twenty-one".