1284849 has 16 divisors (see below), whose sum is σ = 1987200. Its totient is φ = 818928.

The previous prime is 1284847. The next prime is 1284851. The reversal of 1284849 is 9484821.

It is an interprime number because it is at equal distance from previous prime (1284847) and next prime (1284851).

It is not a de Polignac number, because 1284849 - 2¹ = 1284847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1284841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (124200).

2^1284849 is an apocalyptic number.

It is an amenable number.

1284849 is a deficient number, since it is larger than the sum of its proper divisors (702351).

1284849 is a wasteful number, since it uses less digits than its factorization.

1284849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101 (or 2095 counting only the distinct ones).

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

The square root of 1284849 is about 1133.5117996739. The cubic root of 1284849 is about 108.7136382596.

The spelling of 1284849 in words is "one million, two hundred eighty-four thousand, eight hundred forty-nine".