1387017 has 16 divisors (see below), whose sum is σ = 2100480. Its totient is φ = 904176.

The previous prime is 1387007. The next prime is 1387021. The reversal of 1387017 is 7107831.

It is not a de Polignac number, because 1387017 - 2⁶ = 1386953 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1387007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723 + ... + 1815.

It is an arithmetic number, because the mean of its divisors is an integer number (131280).

2^1387017 is an apocalyptic number.

It is an amenable number.

1387017 is a deficient number, since it is larger than the sum of its proper divisors (713463).

1387017 is a wasteful number, since it uses less digits than its factorization.

1387017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1387017 is about 1177.7168590115. The cubic root of 1387017 is about 111.5220116477.

The spelling of 1387017 in words is "one million, three hundred eighty-seven thousand, seventeen".