1230779 has 8 divisors (see below), whose sum is σ = 1375920. Its totient is φ = 1091200.

The previous prime is 1230769. The next prime is 1230791. The reversal of 1230779 is 9770321.

It is a happy number.

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

It is not a de Polignac number, because 1230779 - 2¹² = 1226683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230739) 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 7 ways as a sum of consecutive naturals, for example, 914 + ... + 1815.

It is an arithmetic number, because the mean of its divisors is an integer number (171990).

2^1230779 is an apocalyptic number.

1230779 is a deficient number, since it is larger than the sum of its proper divisors (145141).

1230779 is a wasteful number, since it uses less digits than its factorization.

1230779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 1230779 is about 1109.4047953745. The cubic root of 1230779 is about 107.1667415113.

The spelling of 1230779 in words is "one million, two hundred thirty thousand, seven hundred seventy-nine".