3870968391 has 12 divisors (see below), whose sum is σ = 5920304832. Its totient is φ = 2428842816.

The previous prime is 3870968389. The next prime is 3870968407. The reversal of 3870968391 is 1938690783.

It is not a de Polignac number, because 3870968391 - 2¹ = 3870968389 is a prime.

It is a super-2 number, since 2×3870968391² = 29968792568242257762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870968371) 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, 12650071 + ... + 12650376.

It is an arithmetic number, because the mean of its divisors is an integer number (493358736).

Almost surely, 2^3870968391 is an apocalyptic number.

3870968391 is a deficient number, since it is larger than the sum of its proper divisors (2049336441).

3870968391 is a wasteful number, since it uses less digits than its factorization.

3870968391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25300470 (or 25300467 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 3870968391 is about 62217.1068999516. The cubic root of 3870968391 is about 1570.1454137968.

The spelling of 3870968391 in words is "three billion, eight hundred seventy million, nine hundred sixty-eight thousand, three hundred ninety-one".