3897286587 has 24 divisors (see below), whose sum is σ = 5676543600. Its totient is φ = 2576484288.

The previous prime is 3897286583. The next prime is 3897286621. The reversal of 3897286587 is 7856827983.

It is not a de Polignac number, because 3897286587 - 2² = 3897286583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3897286583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1716489 + ... + 1718757.

It is an arithmetic number, because the mean of its divisors is an integer number (236522650).

Almost surely, 2^3897286587 is an apocalyptic number.

3897286587 is a deficient number, since it is larger than the sum of its proper divisors (1779257013).

3897286587 is a wasteful number, since it uses less digits than its factorization.

3897286587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787 (or 3784 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The square root of 3897286587 is about 62428.2515132372. The cubic root of 3897286587 is about 1573.6957825916.

The spelling of 3897286587 in words is "three billion, eight hundred ninety-seven million, two hundred eighty-six thousand, five hundred eighty-seven".