39468389 has 2 divisors, whose sum is σ = 39468390. Its totient is φ = 39468388.

The previous prime is 39468371. The next prime is 39468413. The reversal of 39468389 is 98386493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38068900 + 1399489 = 6170^2 + 1183^2 .

It is an emirp because it is prime and its reverse (98386493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39468389 - 2⁸ = 39468133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39468349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19734194 + 19734195.

It is an arithmetic number, because the mean of its divisors is an integer number (19734195).

Almost surely, 2^39468389 is an apocalyptic number.

It is an amenable number.

39468389 is a deficient number, since it is larger than the sum of its proper divisors (1).

39468389 is an equidigital number, since it uses as much as digits as its factorization.

39468389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The square root of 39468389 is about 6282.3872055135. The cubic root of 39468389 is about 340.4733573972.

The spelling of 39468389 in words is "thirty-nine million, four hundred sixty-eight thousand, three hundred eighty-nine".