13628774 has 4 divisors (see below), whose sum is σ = 20443164. Its totient is φ = 6814386.

The previous prime is 13628773. The next prime is 13628801. The reversal of 13628774 is 47782631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13628773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407192 + ... + 3407195.

It is an arithmetic number, because the mean of its divisors is an integer number (5110791).

Almost surely, 2^13628774 is an apocalyptic number.

13628774 is a deficient number, since it is larger than the sum of its proper divisors (6814390).

13628774 is an equidigital number, since it uses as much as digits as its factorization.

13628774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814389.

The product of its digits is 56448, while the sum is 38.

The square root of 13628774 is about 3691.7169447291. The cubic root of 13628774 is about 238.8648594383.

The spelling of 13628774 in words is "thirteen million, six hundred twenty-eight thousand, seven hundred seventy-four".