1284963 has 8 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 848424.

The previous prime is 1284937. The next prime is 1284967. The reversal of 1284963 is 3694821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1284963 - 2⁵ = 1284931 is a prime.

It is a super-3 number, since 3×1284963³ = 6364922532907333041, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1284967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681 + ... + 2322.

It is an arithmetic number, because the mean of its divisors is an integer number (216216).

2^1284963 is an apocalyptic number.

1284963 is a deficient number, since it is larger than the sum of its proper divisors (444765).

1284963 is a wasteful number, since it uses less digits than its factorization.

1284963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113.

The product of its digits is 10368, while the sum is 33.

The square root of 1284963 is about 1133.5620847576. The cubic root of 1284963 is about 108.7168534203.

The spelling of 1284963 in words is "one million, two hundred eighty-four thousand, nine hundred sixty-three".