32121893 has 2 divisors, whose sum is σ = 32121894. Its totient is φ = 32121892.

The previous prime is 32121871. The next prime is 32121907. The reversal of 32121893 is 39812123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18335524 + 13786369 = 4282^2 + 3713^2 .

It is a cyclic number.

It is not a de Polignac number, because 32121893 - 2¹² = 32117797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32121853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060946 + 16060947.

It is an arithmetic number, because the mean of its divisors is an integer number (16060947).

Almost surely, 2^32121893 is an apocalyptic number.

It is an amenable number.

32121893 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121893 is an equidigital number, since it uses as much as digits as its factorization.

32121893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 32121893 is about 5667.6179299596. The cubic root of 32121893 is about 317.8828102129.

The spelling of 32121893 in words is "thirty-two million, one hundred twenty-one thousand, eight hundred ninety-three".