1284984 has 48 divisors (see below), whose sum is σ = 3614520. Its totient is φ = 427680.

The previous prime is 1284977. The next prime is 1284991. The reversal of 1284984 is 4894821.

It is an interprime number because it is at equal distance from previous prime (1284977) and next prime (1284991).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1614 + ... + 2274.

2^1284984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1284984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807260).

1284984 is an abundant number, since it is smaller than the sum of its proper divisors (2329536).

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

1284984 is an equidigital number, since it uses as much as digits as its factorization.

1284984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 666 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1284984 is about 1133.5713475560. The cubic root of 1284984 is about 108.7174456661.

The spelling of 1284984 in words is "one million, two hundred eighty-four thousand, nine hundred eighty-four".