13087697 has 8 divisors (see below), whose sum is σ = 15029952. Its totient is φ = 11163600.

The previous prime is 13087691. The next prime is 13087699. The reversal of 13087697 is 79678031.

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

It is not a de Polignac number, because 13087697 - 2⁸ = 13087441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13087691) 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, 2954 + ... + 5907.

It is an arithmetic number, because the mean of its divisors is an integer number (1878744).

Almost surely, 2^13087697 is an apocalyptic number.

13087697 is the 2954-th pentagonal number.

It is an amenable number.

13087697 is a deficient number, since it is larger than the sum of its proper divisors (1942255).

13087697 is an equidigital number, since it uses as much as digits as its factorization.

13087697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9079.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 13087697 is about 3617.6922201868. The cubic root of 13087697 is about 235.6610150466.

The spelling of 13087697 in words is "thirteen million, eighty-seven thousand, six hundred ninety-seven".