1393287 has 8 divisors (see below), whose sum is σ = 2123136. Its totient is φ = 796152.

The previous prime is 1393283. The next prime is 1393297. The reversal of 1393287 is 7823931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1393287 - 2² = 1393283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33153 + ... + 33194.

It is an arithmetic number, because the mean of its divisors is an integer number (265392).

2^1393287 is an apocalyptic number.

1393287 is a deficient number, since it is larger than the sum of its proper divisors (729849).

1393287 is an equidigital number, since it uses as much as digits as its factorization.

1393287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66357.

The product of its digits is 9072, while the sum is 33.

The square root of 1393287 is about 1180.3757876202. The cubic root of 1393287 is about 111.6898038738.

The spelling of 1393287 in words is "one million, three hundred ninety-three thousand, two hundred eighty-seven".