3939499 has 2 divisors, whose sum is σ = 3939500. Its totient is φ = 3939498.

The previous prime is 3939497. The next prime is 3939521. The reversal of 3939499 is 9949393.

It is a weak prime.

It is an emirp because it is prime and its reverse (9949393) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3939499 - 2¹ = 3939497 is a prime.

Together with 3939497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3939497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969749 + 1969750.

It is an arithmetic number, because the mean of its divisors is an integer number (1969750).

Almost surely, 2^3939499 is an apocalyptic number.

3939499 is a deficient number, since it is larger than the sum of its proper divisors (1).

3939499 is an equidigital number, since it uses as much as digits as its factorization.

3939499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 236196, while the sum is 46.

The square root of 3939499 is about 1984.8171200390. The cubic root of 3939499 is about 157.9357079662.

It can be divided in two parts, 39394 and 99, that added together give a palindrome (39493).

The spelling of 3939499 in words is "three million, nine hundred thirty-nine thousand, four hundred ninety-nine".