1370687 has 2 divisors, whose sum is σ = 1370688. Its totient is φ = 1370686.

The previous prime is 1370683. The next prime is 1370701. The reversal of 1370687 is 7860731.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7860731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1370687 - 2² = 1370683 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 (1370683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685343 + 685344.

It is an arithmetic number, because the mean of its divisors is an integer number (685344).

2^1370687 is an apocalyptic number.

1370687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370687 is an equidigital number, since it uses as much as digits as its factorization.

1370687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1370687 is about 1170.7634261455. The cubic root of 1370687 is about 111.0826157668.

Subtracting from 1370687 its product of nonzero digits (7056), we obtain a palindrome (1363631).

The spelling of 1370687 in words is "one million, three hundred seventy thousand, six hundred eighty-seven".