1279394 has 4 divisors (see below), whose sum is σ = 1919094. Its totient is φ = 639696.

The previous prime is 1279361. The next prime is 1279417. The reversal of 1279394 is 4939721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 582169 = 835^2 + 763^2 .

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319847 + ... + 319850.

2^1279394 is an apocalyptic number.

1279394 is a deficient number, since it is larger than the sum of its proper divisors (639700).

1279394 is an equidigital number, since it uses as much as digits as its factorization.

1279394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639699.

The product of its digits is 13608, while the sum is 35.

The square root of 1279394 is about 1131.1030014990. The cubic root of 1279394 is about 108.5595671978.

The spelling of 1279394 in words is "one million, two hundred seventy-nine thousand, three hundred ninety-four".