1287414 has 28 divisors (see below), whose sum is σ = 2898636. Its totient is φ = 428652.

The previous prime is 1287401. The next prime is 1287431. The reversal of 1287414 is 4147821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1017 + ... + 1899.

2^1287414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1287414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1449318).

1287414 is an abundant number, since it is smaller than the sum of its proper divisors (1611222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1287414 is an frugal number, since it uses more digits than its factorization.

1287414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 888 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1287414 is about 1134.6426750303. The cubic root of 1287414 is about 108.7859334287.

The spelling of 1287414 in words is "one million, two hundred eighty-seven thousand, four hundred fourteen".