3802347949 has 2 divisors, whose sum is σ = 3802347950. Its totient is φ = 3802347948.

The previous prime is 3802347947. The next prime is 3802348019. The reversal of 3802347949 is 9497432083.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3550014724 + 252333225 = 59582^2 + 15885^2 .

It is an emirp because it is prime and its reverse (9497432083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3802347949 - 2¹ = 3802347947 is a prime.

Together with 3802347947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3802347947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1901173974 + 1901173975.

It is an arithmetic number, because the mean of its divisors is an integer number (1901173975).

Almost surely, 2^3802347949 is an apocalyptic number.

It is an amenable number.

3802347949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3802347949 is an equidigital number, since it uses as much as digits as its factorization.

3802347949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 3802347949 is about 61663.1814699826. The cubic root of 3802347949 is about 1560.8120838945.

The spelling of 3802347949 in words is "three billion, eight hundred two million, three hundred forty-seven thousand, nine hundred forty-nine".