13771628 has 12 divisors (see below), whose sum is σ = 25954320. Its totient is φ = 6356112.

The previous prime is 13771627. The next prime is 13771631. The reversal of 13771628 is 82617731.

It is not an unprimeable number, because it can be changed into a prime (13771621) 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 in 3 ways as a sum of consecutive naturals, for example, 132368 + ... + 132471.

It is an arithmetic number, because the mean of its divisors is an integer number (2162860).

Almost surely, 2^13771628 is an apocalyptic number.

It is an amenable number.

13771628 is a deficient number, since it is larger than the sum of its proper divisors (12182692).

13771628 is a wasteful number, since it uses less digits than its factorization.

13771628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264856 (or 264854 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 13771628 is about 3711.0144165713. The cubic root of 13771628 is about 239.6965377525.

The spelling of 13771628 in words is "thirteen million, seven hundred seventy-one thousand, six hundred twenty-eight".