3891605914 has 8 divisors (see below), whose sum is σ = 6671324448. Its totient is φ = 1667831100.

The previous prime is 3891605891. The next prime is 3891605917. The reversal of 3891605914 is 4195061983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3891605917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138985912 + ... + 138985939.

It is an arithmetic number, because the mean of its divisors is an integer number (833915556).

Almost surely, 2^3891605914 is an apocalyptic number.

3891605914 is a deficient number, since it is larger than the sum of its proper divisors (2779718534).

3891605914 is a wasteful number, since it uses less digits than its factorization.

3891605914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277971860.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 3891605914 is about 62382.7373076879. The cubic root of 3891605914 is about 1572.9308060767.

The spelling of 3891605914 in words is "three billion, eight hundred ninety-one million, six hundred five thousand, nine hundred fourteen".