1387007 has 2 divisors, whose sum is σ = 1387008. Its totient is φ = 1387006.

The previous prime is 1386991. The next prime is 1387021. The reversal of 1387007 is 7007831.

It is a strong prime.

It is an emirp because it is prime and its reverse (7007831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1387007 - 2⁴ = 1386991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693503 + 693504.

It is an arithmetic number, because the mean of its divisors is an integer number (693504).

2^1387007 is an apocalyptic number.

1387007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387007 is an equidigital number, since it uses as much as digits as its factorization.

1387007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1387007 is about 1177.7126135013. The cubic root of 1387007 is about 111.5217436330.

Subtracting from 1387007 its product of nonzero digits (1176), we obtain a palindrome (1385831).

The spelling of 1387007 in words is "one million, three hundred eighty-seven thousand, seven".