13987495 has 8 divisors (see below), whose sum is σ = 17102016. Its totient is φ = 10978656.

The previous prime is 13987489. The next prime is 13987531. The reversal of 13987495 is 59478931.

It is a happy number.

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 13987495 - 2³ = 13987487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26127 + ... + 26656.

It is an arithmetic number, because the mean of its divisors is an integer number (2137752).

Almost surely, 2^13987495 is an apocalyptic number.

13987495 is a deficient number, since it is larger than the sum of its proper divisors (3114521).

13987495 is an equidigital number, since it uses as much as digits as its factorization.

13987495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52841.

The product of its digits is 272160, while the sum is 46.

The square root of 13987495 is about 3739.9859625405. The cubic root of 13987495 is about 240.9424459248.

The spelling of 13987495 in words is "thirteen million, nine hundred eighty-seven thousand, four hundred ninety-five".