1279563 has 8 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 842088.

The previous prime is 1279561. The next prime is 1279583. The reversal of 1279563 is 3659721.

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

It is not a de Polignac number, because 1279563 - 2¹ = 1279561 is a prime.

1279563 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279561) 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, 2463 + ... + 2936.

It is an arithmetic number, because the mean of its divisors is an integer number (216000).

2^1279563 is an apocalyptic number.

1279563 is a deficient number, since it is larger than the sum of its proper divisors (448437).

1279563 is an equidigital number, since it uses as much as digits as its factorization.

1279563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481.

The product of its digits is 11340, while the sum is 33.

The square root of 1279563 is about 1131.1777048722. The cubic root of 1279563 is about 108.5643470022.

The spelling of 1279563 in words is "one million, two hundred seventy-nine thousand, five hundred sixty-three".