13479669 has 32 divisors (see below), whose sum is σ = 23159040. Its totient is φ = 7589376.

The previous prime is 13479659. The next prime is 13479677. The reversal of 13479669 is 96697431.

13479669 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13479669 - 2¹² = 13475573 is a prime.

It is a super-2 number, since 2×13479669² = 363402952699122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13479659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13309 + ... + 14285.

It is an arithmetic number, because the mean of its divisors is an integer number (723720).

Almost surely, 2^13479669 is an apocalyptic number.

It is an amenable number.

13479669 is a deficient number, since it is larger than the sum of its proper divisors (9679371).

13479669 is an equidigital number, since it uses as much as digits as its factorization.

13479669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1060 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 13479669 is about 3671.4668730631. The cubic root of 13479669 is about 237.9905664411.

The spelling of 13479669 in words is "thirteen million, four hundred seventy-nine thousand, six hundred sixty-nine".