1279828 has 48 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 519680.

The previous prime is 1279823. The next prime is 1279843. The reversal of 1279828 is 8289721.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279823) 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, 21663 + ... + 21721.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2^1279828 is an apocalyptic number.

It is an amenable number.

1279828 is an abundant number, since it is smaller than the sum of its proper divisors (1441772).

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

1279828 is a wasteful number, since it uses less digits than its factorization.

1279828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 118 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1279828 is about 1131.2948333657. The cubic root of 1279828 is about 108.5718411144.

The spelling of 1279828 in words is "one million, two hundred seventy-nine thousand, eight hundred twenty-eight".