13870235 has 4 divisors (see below), whose sum is σ = 16644288. Its totient is φ = 11096184.

The previous prime is 13870231. The next prime is 13870243. The reversal of 13870235 is 53207831.

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 13870235 - 2² = 13870231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13870198 and 13870207.

It is not an unprimeable number, because it can be changed into a prime (13870231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387019 + ... + 1387028.

It is an arithmetic number, because the mean of its divisors is an integer number (4161072).

Almost surely, 2^13870235 is an apocalyptic number.

13870235 is a deficient number, since it is larger than the sum of its proper divisors (2774053).

13870235 is an equidigital number, since it uses as much as digits as its factorization.

13870235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774052.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 13870235 is about 3724.2764397934. The cubic root of 13870235 is about 240.2672659175.

The spelling of 13870235 in words is "thirteen million, eight hundred seventy thousand, two hundred thirty-five".