1287093 has 8 divisors (see below), whose sum is σ = 1734208. Its totient is φ = 849024.

The previous prime is 1287071. The next prime is 1287101. The reversal of 1287093 is 3907821.

It is a happy number.

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

It is not a de Polignac number, because 1287093 - 2⁵ = 1287061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1287093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287593) 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, 1921 + ... + 2502.

It is an arithmetic number, because the mean of its divisors is an integer number (216776).

2^1287093 is an apocalyptic number.

It is an amenable number.

1287093 is a deficient number, since it is larger than the sum of its proper divisors (447115).

1287093 is an equidigital number, since it uses as much as digits as its factorization.

1287093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1287093 is about 1134.5012119870. The cubic root of 1287093 is about 108.7768912228.

The spelling of 1287093 in words is "one million, two hundred eighty-seven thousand, ninety-three".