1427984 has 20 divisors (see below), whose sum is σ = 2856960. Its totient is φ = 690720.

The previous prime is 1427969. The next prime is 1427999. The reversal of 1427984 is 4897241.

Added to its reverse (4897241) it gives a square (6325225 = 2515²).

It is an interprime number because it is at equal distance from previous prime (1427969) and next prime (1427999).

1427984 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944 + ... + 1935.

It is an arithmetic number, because the mean of its divisors is an integer number (142848).

2^1427984 is an apocalyptic number.

It is an amenable number.

1427984 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1427984 is a wasteful number, since it uses less digits than its factorization.

1427984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918 (or 2912 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1427984 is about 1194.9828450651. The cubic root of 1427984 is about 112.6093488237.

Adding to 1427984 its reverse (4897241), we get a square (6325225 = 2515²).

The spelling of 1427984 in words is "one million, four hundred twenty-seven thousand, nine hundred eighty-four".