39293321 has 2 divisors, whose sum is σ = 39293322. Its totient is φ = 39293320.

The previous prime is 39293291. The next prime is 39293323. The reversal of 39293321 is 12339293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24393721 + 14899600 = 4939^2 + 3860^2 .

It is a cyclic number.

It is not a de Polignac number, because 39293321 - 2¹⁸ = 39031177 is a prime.

Together with 39293323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39293323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19646660 + 19646661.

It is an arithmetic number, because the mean of its divisors is an integer number (19646661).

Almost surely, 2^39293321 is an apocalyptic number.

It is an amenable number.

39293321 is a deficient number, since it is larger than the sum of its proper divisors (1).

39293321 is an equidigital number, since it uses as much as digits as its factorization.

39293321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 32.

The square root of 39293321 is about 6268.4384817911. The cubic root of 39293321 is about 339.9692042465.

The spelling of 39293321 in words is "thirty-nine million, two hundred ninety-three thousand, three hundred twenty-one".