3439961491 has 2 divisors, whose sum is σ = 3439961492. Its totient is φ = 3439961490.

The previous prime is 3439961453. The next prime is 3439961501. The reversal of 3439961491 is 1941699343.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3439961491 - 2¹⁹ = 3439437203 is a prime.

It is not a weakly prime, because it can be changed into another prime (3439968491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1719980745 + 1719980746.

It is an arithmetic number, because the mean of its divisors is an integer number (1719980746).

Almost surely, 2^3439961491 is an apocalyptic number.

3439961491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3439961491 is an equidigital number, since it uses as much as digits as its factorization.

3439961491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 49.

The square root of 3439961491 is about 58651.1849070417. The cubic root of 3439961491 is about 1509.5628298935.

The spelling of 3439961491 in words is "three billion, four hundred thirty-nine million, nine hundred sixty-one thousand, four hundred ninety-one".