13628858 has 4 divisors (see below), whose sum is σ = 20443290. Its totient is φ = 6814428.

The previous prime is 13628831. The next prime is 13628863. The reversal of 13628858 is 85882631.

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

It can be written as a sum of positive squares in only one way, i.e., 10195249 + 3433609 = 3193^2 + 1853^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407213 + ... + 3407216.

Almost surely, 2^13628858 is an apocalyptic number.

13628858 is a deficient number, since it is larger than the sum of its proper divisors (6814432).

13628858 is an equidigital number, since it uses as much as digits as its factorization.

13628858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814431.

The product of its digits is 92160, while the sum is 41.

The square root of 13628858 is about 3691.7283215318. The cubic root of 13628858 is about 238.8653501796.

The spelling of 13628858 in words is "thirteen million, six hundred twenty-eight thousand, eight hundred fifty-eight".