1370287 has 2 divisors, whose sum is σ = 1370288. Its totient is φ = 1370286.

The previous prime is 1370269. The next prime is 1370297. The reversal of 1370287 is 7820731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1370287 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 (1370227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685143 + 685144.

It is an arithmetic number, because the mean of its divisors is an integer number (685144).

2^1370287 is an apocalyptic number.

1370287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370287 is an equidigital number, since it uses as much as digits as its factorization.

1370287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1370287 is about 1170.5925849757. The cubic root of 1370287 is about 111.0718091739.

The spelling of 1370287 in words is "one million, three hundred seventy thousand, two hundred eighty-seven".