13479661 has 8 divisors (see below), whose sum is σ = 14545944. Its totient is φ = 12417600.

The previous prime is 13479659. The next prime is 13479677. The reversal of 13479661 is 16697431.

It can be written as a sum of positive squares in 4 ways, for example, as 447561 + 13032100 = 669^2 + 3610^2 .

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

It is not a de Polignac number, because 13479661 - 2¹ = 13479659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13479661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13479601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9711 + ... + 11011.

It is an arithmetic number, because the mean of its divisors is an integer number (1818243).

Almost surely, 2^13479661 is an apocalyptic number.

It is an amenable number.

13479661 is a deficient number, since it is larger than the sum of its proper divisors (1066283).

13479661 is a wasteful number, since it uses less digits than its factorization.

13479661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111.

The product of its digits is 27216, while the sum is 37.

The square root of 13479661 is about 3671.4657835802. The cubic root of 13479661 is about 237.9905193597.

The spelling of 13479661 in words is "thirteen million, four hundred seventy-nine thousand, six hundred sixty-one".