13858946 has 8 divisors (see below), whose sum is σ = 20875404. Its totient is φ = 6900480.

The previous prime is 13858939. The next prime is 13858967. The reversal of 13858946 is 64985831.

It can be written as a sum of positive squares in 2 ways, for example, as 11868025 + 1990921 = 3445^2 + 1411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13858897 and 13858906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13895 + ... + 14858.

Almost surely, 2^13858946 is an apocalyptic number.

13858946 is a deficient number, since it is larger than the sum of its proper divisors (7016458).

13858946 is a wasteful number, since it uses less digits than its factorization.

13858946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28996.

The product of its digits is 207360, while the sum is 44.

The square root of 13858946 is about 3722.7605348719. The cubic root of 13858946 is about 240.2020636248.

The spelling of 13858946 in words is "thirteen million, eight hundred fifty-eight thousand, nine hundred forty-six".