13408507 has 6 divisors (see below), whose sum is σ = 15597708. Its totient is φ = 11492964.

The previous prime is 13408501. The next prime is 13408511. The reversal of 13408507 is 70580431.

It is not a de Polignac number, because 13408507 - 2²³ = 5019899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13408501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136773 + ... + 136870.

It is an arithmetic number, because the mean of its divisors is an integer number (2599618).

Almost surely, 2^13408507 is an apocalyptic number.

13408507 is a deficient number, since it is larger than the sum of its proper divisors (2189201).

13408507 is an equidigital number, since it uses as much as digits as its factorization.

13408507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273657 (or 273650 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13408507 is about 3661.7628268363. The cubic root of 13408507 is about 237.5710265868.

Adding to 13408507 its reverse (70580431), we get a palindrome (83988938).

The spelling of 13408507 in words is "thirteen million, four hundred eight thousand, five hundred seven".