13523670 has 48 divisors (see below), whose sum is σ = 37234080. Its totient is φ = 3393792.

The previous prime is 13523663. The next prime is 13523677. The reversal of 13523670 is 7632531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13523663) and next prime (13523677).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13523677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2890 + ... + 5949.

It is an arithmetic number, because the mean of its divisors is an integer number (775710).

Almost surely, 2^13523670 is an apocalyptic number.

13523670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13523670 is an abundant number, since it is smaller than the sum of its proper divisors (23710410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13523670 is a wasteful number, since it uses less digits than its factorization.

13523670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869 (or 8866 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 13523670 is about 3677.4542825166. The cubic root of 13523670 is about 238.2492387007.

The spelling of 13523670 in words is "thirteen million, five hundred twenty-three thousand, six hundred seventy".