1493287 has 4 divisors (see below), whose sum is σ = 1497256. Its totient is φ = 1489320.

The previous prime is 1493281. The next prime is 1493291. The reversal of 1493287 is 7823941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7823941 = 1123 ⋅6967.

It is a cyclic number.

It is not a de Polignac number, because 1493287 - 2³ = 1493279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353 + ... + 2194.

It is an arithmetic number, because the mean of its divisors is an integer number (374314).

2^1493287 is an apocalyptic number.

1493287 is a deficient number, since it is larger than the sum of its proper divisors (3969).

1493287 is an equidigital number, since it uses as much as digits as its factorization.

1493287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968.

The product of its digits is 12096, while the sum is 34.

The square root of 1493287 is about 1222.0012274953. The cubic root of 1493287 is about 114.3004029484.

The spelling of 1493287 in words is "one million, four hundred ninety-three thousand, two hundred eighty-seven".