13858963 has 4 divisors (see below), whose sum is σ = 13883560. Its totient is φ = 13834368.

The previous prime is 13858939. The next prime is 13858967. The reversal of 13858963 is 36985831.

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 13858963 - 2²¹ = 11761811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13858967) 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, 11433 + ... + 12586.

It is an arithmetic number, because the mean of its divisors is an integer number (3470890).

Almost surely, 2^13858963 is an apocalyptic number.

13858963 is a deficient number, since it is larger than the sum of its proper divisors (24597).

13858963 is an equidigital number, since it uses as much as digits as its factorization.

13858963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24596.

The product of its digits is 155520, while the sum is 43.

The square root of 13858963 is about 3722.7628181231. The cubic root of 13858963 is about 240.2021618389.

The spelling of 13858963 in words is "thirteen million, eight hundred fifty-eight thousand, nine hundred sixty-three".