3891004117 has 48 divisors (see below), whose sum is σ = 5305817088. Its totient is φ = 2770597440.

The previous prime is 3891004111. The next prime is 3891004121. The reversal of 3891004117 is 7114001983.

It is a de Polignac number, because none of the positive numbers 2^k-3891004117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3891004111) 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 47 ways as a sum of consecutive naturals, for example, 1338888 + ... + 1341790.

It is an arithmetic number, because the mean of its divisors is an integer number (110537856).

Almost surely, 2^3891004117 is an apocalyptic number.

It is an amenable number.

3891004117 is a deficient number, since it is larger than the sum of its proper divisors (1414812971).

3891004117 is a wasteful number, since it uses less digits than its factorization.

3891004117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 3891004117 is about 62377.9136954740. The cubic root of 3891004117 is about 1572.8497226835.

The spelling of 3891004117 in words is "three billion, eight hundred ninety-one million, four thousand, one hundred seventeen".