8001387 has 6 divisors (see below), whose sum is σ = 11557572. Its totient is φ = 5334252.

The previous prime is 8001359. The next prime is 8001491. The reversal of 8001387 is 7831008.

It is not a de Polignac number, because 8001387 - 2¹¹ = 7999339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8001387.

It is not an unprimeable number, because it can be changed into a prime (8001307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 444513 + ... + 444530.

It is an arithmetic number, because the mean of its divisors is an integer number (1926262).

Almost surely, 2^8001387 is an apocalyptic number.

8001387 is a deficient number, since it is larger than the sum of its proper divisors (3556185).

8001387 is a wasteful number, since it uses less digits than its factorization.

8001387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889049 (or 889046 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 8001387 is about 2828.6723033961. The cubic root of 8001387 is about 200.0115576654.

It can be divided in two parts, 800 and 1387, that added together give a 7-th power (2187 = 3⁷).

The spelling of 8001387 in words is "eight million, one thousand, three hundred eighty-seven".