1979279 has 8 divisors (see below), whose sum is σ = 2067120. Its totient is φ = 1892800.

The previous prime is 1979269. The next prime is 1979281. The reversal of 1979279 is 9729791.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1979279 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979209) 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, 3539 + ... + 4059.

It is an arithmetic number, because the mean of its divisors is an integer number (258390).

2^1979279 is an apocalyptic number.

1979279 is a deficient number, since it is larger than the sum of its proper divisors (87841).

1979279 is a wasteful number, since it uses less digits than its factorization.

1979279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681.

The product of its digits is 71442, while the sum is 44.

The square root of 1979279 is about 1406.8685084257. The cubic root of 1979279 is about 125.5554798803. Note that the first 3 decimals are identical.

The spelling of 1979279 in words is "one million, nine hundred seventy-nine thousand, two hundred seventy-nine".