3739391 has 2 divisors, whose sum is σ = 3739392. Its totient is φ = 3739390.

The previous prime is 3739387. The next prime is 3739397. The reversal of 3739391 is 1939373.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3739391 - 2² = 3739387 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3739397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1869695 + 1869696.

It is an arithmetic number, because the mean of its divisors is an integer number (1869696).

Almost surely, 2^3739391 is an apocalyptic number.

3739391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3739391 is an equidigital number, since it uses as much as digits as its factorization.

3739391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309, while the sum is 35.

The square root of 3739391 is about 1933.7505009696. The cubic root of 3739391 is about 155.2149774533.

The spelling of 3739391 in words is "three million, seven hundred thirty-nine thousand, three hundred ninety-one".