13731628 has 6 divisors (see below), whose sum is σ = 24030356. Its totient is φ = 6865812.

The previous prime is 13731593. The next prime is 13731629. The reversal of 13731628 is 82613731.

It is a self number, because there is not a number n which added to its sum of digits gives 13731628.

It is not an unprimeable number, because it can be changed into a prime (13731629) by changing a digit.

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 as a sum of consecutive naturals, namely, 1716450 + ... + 1716457.

Almost surely, 2^13731628 is an apocalyptic number.

It is an amenable number.

13731628 is a deficient number, since it is larger than the sum of its proper divisors (10298728).

13731628 is a wasteful number, since it uses less digits than its factorization.

13731628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432911 (or 3432909 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 13731628 is about 3705.6211355183. The cubic root of 13731628 is about 239.4642447310.

The spelling of 13731628 in words is "thirteen million, seven hundred thirty-one thousand, six hundred twenty-eight".