32213641 has 4 divisors (see below), whose sum is σ = 32241412. Its totient is φ = 32185872.

The previous prime is 32213633. The next prime is 32213653. The reversal of 32213641 is 14631223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14631223 = 43 ⋅340261.

It can be written as a sum of positive squares in 2 ways, for example, as 6610041 + 25603600 = 2571^2 + 5060^2 .

It is a cyclic number.

It is not a de Polignac number, because 32213641 - 2³ = 32213633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32213611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12066 + ... + 14491.

It is an arithmetic number, because the mean of its divisors is an integer number (8060353).

Almost surely, 2^32213641 is an apocalyptic number.

It is an amenable number.

32213641 is a deficient number, since it is larger than the sum of its proper divisors (27771).

32213641 is a wasteful number, since it uses less digits than its factorization.

32213641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27770.

The product of its digits is 864, while the sum is 22.

The square root of 32213641 is about 5675.7062115652. The cubic root of 32213641 is about 318.1851729294.

Adding to 32213641 its reverse (14631223), we get a palindrome (46844864).

The spelling of 32213641 in words is "thirty-two million, two hundred thirteen thousand, six hundred forty-one".