13528397 has 8 divisors (see below), whose sum is σ = 13808640. Its totient is φ = 13250160.

The previous prime is 13528387. The next prime is 13528477. The reversal of 13528397 is 79382531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13528397 - 2¹⁴ = 13512013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13528397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13528357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28004 + ... + 28482.

It is an arithmetic number, because the mean of its divisors is an integer number (1726080).

Almost surely, 2^13528397 is an apocalyptic number.

It is an amenable number.

13528397 is a deficient number, since it is larger than the sum of its proper divisors (280243).

13528397 is an equidigital number, since it uses as much as digits as its factorization.

13528397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its digits is 45360, while the sum is 38.

The square root of 13528397 is about 3678.0969264009. The cubic root of 13528397 is about 238.2769943065.

The spelling of 13528397 in words is "thirteen million, five hundred twenty-eight thousand, three hundred ninety-seven".