1171479 has 4 divisors (see below), whose sum is σ = 1561976. Its totient is φ = 780984.

The previous prime is 1171477. The next prime is 1171517. The reversal of 1171479 is 9741711.

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

It is not a de Polignac number, because 1171479 - 2¹ = 1171477 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195244 + ... + 195249.

It is an arithmetic number, because the mean of its divisors is an integer number (390494).

2^1171479 is an apocalyptic number.

1171479 is a deficient number, since it is larger than the sum of its proper divisors (390497).

1171479 is an equidigital number, since it uses as much as digits as its factorization.

1171479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390496.

The product of its digits is 1764, while the sum is 30.

The square root of 1171479 is about 1082.3488347109. The cubic root of 1171479 is about 105.4172062929.

It can be divided in two parts, 117 and 1479, that added together give a triangular number (1596 = T₅₆).

The spelling of 1171479 in words is "one million, one hundred seventy-one thousand, four hundred seventy-nine".