1284973 has 4 divisors (see below), whose sum is σ = 1319740. Its totient is φ = 1250208.

The previous prime is 1284971. The next prime is 1284977. The reversal of 1284973 is 3794821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3794821 = 59 ⋅64319.

It can be written as a sum of positive squares in 2 ways, for example, as 514089 + 770884 = 717^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1284973 - 2¹ = 1284971 is a prime.

It is a super-2 number, since 2×1284973² = 3302311221458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17328 + ... + 17401.

It is an arithmetic number, because the mean of its divisors is an integer number (329935).

2^1284973 is an apocalyptic number.

It is an amenable number.

1284973 is a deficient number, since it is larger than the sum of its proper divisors (34767).

1284973 is an equidigital number, since it uses as much as digits as its factorization.

1284973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34766.

The product of its digits is 12096, while the sum is 34.

The square root of 1284973 is about 1133.5664956234. The cubic root of 1284973 is about 108.7171354429.

The spelling of 1284973 in words is "one million, two hundred eighty-four thousand, nine hundred seventy-three".