1367987 has 2 divisors, whose sum is σ = 1367988. Its totient is φ = 1367986.

The previous prime is 1367963. The next prime is 1368013. The reversal of 1367987 is 7897631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1367987 - 2¹² = 1363891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1367087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683993 + 683994.

It is an arithmetic number, because the mean of its divisors is an integer number (683994).

2^1367987 is an apocalyptic number.

1367987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1367987 is an equidigital number, since it uses as much as digits as its factorization.

1367987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 1367987 is about 1169.6097639811. The cubic root of 1367987 is about 111.0096304173.

The spelling of 1367987 in words is "one million, three hundred sixty-seven thousand, nine hundred eighty-seven".