13982615 has 4 divisors (see below), whose sum is σ = 16779144. Its totient is φ = 11186088.

The previous prime is 13982593. The next prime is 13982621. The reversal of 13982615 is 51628931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13982615 - 2¹² = 13978519 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 3 ways as a sum of consecutive naturals, for example, 1398257 + ... + 1398266.

It is an arithmetic number, because the mean of its divisors is an integer number (4194786).

Almost surely, 2^13982615 is an apocalyptic number.

13982615 is a deficient number, since it is larger than the sum of its proper divisors (2796529).

13982615 is an equidigital number, since it uses as much as digits as its factorization.

13982615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796528.

The product of its digits is 12960, while the sum is 35.

The square root of 13982615 is about 3739.3334967612. Note that the first 3 decimals coincide. The cubic root of 13982615 is about 240.9144224200.

The spelling of 13982615 in words is "thirteen million, nine hundred eighty-two thousand, six hundred fifteen".