13479469 has 2 divisors, whose sum is σ = 13479470. Its totient is φ = 13479468.

The previous prime is 13479467. The next prime is 13479491. The reversal of 13479469 is 96497431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7767369 + 5712100 = 2787^2 + 2390^2 .

It is an emirp because it is prime and its reverse (96497431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13479469 - 2¹ = 13479467 is a prime.

It is a super-2 number, since 2×13479469² = 363392169043922, which contains 22 as substring.

Together with 13479467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13479463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6739734 + 6739735.

It is an arithmetic number, because the mean of its divisors is an integer number (6739735).

Almost surely, 2^13479469 is an apocalyptic number.

It is an amenable number.

13479469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13479469 is an equidigital number, since it uses as much as digits as its factorization.

13479469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 13479469 is about 3671.4396358922. The cubic root of 13479469 is about 237.9893894006.

It can be divided in two parts, 1347 and 9469, that added together give a square (10816 = 104²).

The spelling of 13479469 in words is "thirteen million, four hundred seventy-nine thousand, four hundred sixty-nine".