1243487 has 8 divisors (see below), whose sum is σ = 1428000. Its totient is φ = 1060704.

The previous prime is 1243483. The next prime is 1243511. The reversal of 1243487 is 7843421.

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

It is a cyclic number.

It is not a de Polignac number, because 1243487 - 2² = 1243483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243481) 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, 2189 + ... + 2697.

It is an arithmetic number, because the mean of its divisors is an integer number (178500).

2^1243487 is an apocalyptic number.

1243487 is a deficient number, since it is larger than the sum of its proper divisors (184513).

1243487 is an equidigital number, since it uses as much as digits as its factorization.

1243487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 5376, while the sum is 29.

The square root of 1243487 is about 1115.1174825999. The cubic root of 1243487 is about 107.5343175094.

It can be divided in two parts, 12434 and 87, that added together give a palindrome (12521).

The spelling of 1243487 in words is "one million, two hundred forty-three thousand, four hundred eighty-seven".