13870323 has 24 divisors (see below), whose sum is σ = 21824400. Its totient is φ = 8455104.

The previous prime is 13870319. The next prime is 13870333. The reversal of 13870323 is 32307831.

It is not a de Polignac number, because 13870323 - 2² = 13870319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13870313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3561 + ... + 6357.

It is an arithmetic number, because the mean of its divisors is an integer number (909350).

Almost surely, 2^13870323 is an apocalyptic number.

13870323 is a deficient number, since it is larger than the sum of its proper divisors (7954077).

13870323 is a wasteful number, since it uses less digits than its factorization.

13870323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851 (or 2848 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 13870323 is about 3724.2882541500. The cubic root of 13870323 is about 240.2677740433.

The spelling of 13870323 in words is "thirteen million, eight hundred seventy thousand, three hundred twenty-three".