13480047 has 48 divisors (see below), whose sum is σ = 24295680. Its totient is φ = 7351344.

The previous prime is 13480043. The next prime is 13480057. The reversal of 13480047 is 74008431.

It is not a de Polignac number, because 13480047 - 2² = 13480043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13480047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13480043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30208 + ... + 30650.

It is an arithmetic number, because the mean of its divisors is an integer number (506160).

Almost surely, 2^13480047 is an apocalyptic number.

13480047 is a deficient number, since it is larger than the sum of its proper divisors (10815633).

13480047 is a wasteful number, since it uses less digits than its factorization.

13480047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13480047 is about 3671.5183507644. The cubic root of 13480047 is about 237.9927910158.

Adding to 13480047 its reverse (74008431), we get a palindrome (87488478).

The spelling of 13480047 in words is "thirteen million, four hundred eighty thousand, forty-seven".