3887717845 has 32 divisors (see below), whose sum is σ = 5404475520. Its totient is φ = 2653347840.

The previous prime is 3887717797. The next prime is 3887717863. The reversal of 3887717845 is 5487177883.

It is not a de Polignac number, because 3887717845 - 2¹³ = 3887709653 is a prime.

It is a super-3 number, since 3×3887717845³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3887717845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324166 + ... + 335944.

It is an arithmetic number, because the mean of its divisors is an integer number (168889860).

Almost surely, 2^3887717845 is an apocalyptic number.

It is an amenable number.

3887717845 is a deficient number, since it is larger than the sum of its proper divisors (1516757675).

3887717845 is a wasteful number, since it uses less digits than its factorization.

3887717845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12165.

The product of its digits is 10536960, while the sum is 58.

The square root of 3887717845 is about 62351.5664999685. The cubic root of 3887717845 is about 1572.4067977817.

The spelling of 3887717845 in words is "three billion, eight hundred eighty-seven million, seven hundred seventeen thousand, eight hundred forty-five".