11661479 has 4 divisors (see below), whose sum is σ = 11698584. Its totient is φ = 11624376.

The previous prime is 11661467. The next prime is 11661491. The reversal of 11661479 is 97416611.

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

It is an interprime number because it is at equal distance from previous prime (11661467) and next prime (11661491).

It is a cyclic number.

It is not a de Polignac number, because 11661479 - 2¹² = 11657383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661449) 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 3 ways as a sum of consecutive naturals, for example, 18077 + ... + 18710.

It is an arithmetic number, because the mean of its divisors is an integer number (2924646).

Almost surely, 2^11661479 is an apocalyptic number.

11661479 is a deficient number, since it is larger than the sum of its proper divisors (37105).

11661479 is an equidigital number, since it uses as much as digits as its factorization.

11661479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37104.

The product of its digits is 9072, while the sum is 35.

The square root of 11661479 is about 3414.8907742415. The cubic root of 11661479 is about 226.7694490128.

The spelling of 11661479 in words is "eleven million, six hundred sixty-one thousand, four hundred seventy-nine".