3874767391 has 12 divisors (see below), whose sum is σ = 4374156136. Its totient is φ = 3427308720.

The previous prime is 3874767371. The next prime is 3874767487. The reversal of 3874767391 is 1937674783.

It is not a de Polignac number, because 3874767391 - 2⁷ = 3874767263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874767311) 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 in 11 ways as a sum of consecutive naturals, for example, 428265 + ... + 437218.

Almost surely, 2^3874767391 is an apocalyptic number.

3874767391 is a deficient number, since it is larger than the sum of its proper divisors (499388745).

3874767391 is a wasteful number, since it uses less digits than its factorization.

3874767391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865542 (or 865531 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 55.

The square root of 3874767391 is about 62247.6296014555. The cubic root of 3874767391 is about 1570.6588970330.

The spelling of 3874767391 in words is "three billion, eight hundred seventy-four million, seven hundred sixty-seven thousand, three hundred ninety-one".