13730771 has 4 divisors (see below), whose sum is σ = 13744752. Its totient is φ = 13716792.

The previous prime is 13730767. The next prime is 13730807. The reversal of 13730771 is 17703731.

It is a happy number.

13730771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17703731 = 463 ⋅38237.

It is a cyclic number.

It is not a de Polignac number, because 13730771 - 2² = 13730767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13730671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5396 + ... + 7521.

It is an arithmetic number, because the mean of its divisors is an integer number (3436188).

Almost surely, 2^13730771 is an apocalyptic number.

13730771 is a deficient number, since it is larger than the sum of its proper divisors (13981).

13730771 is a wasteful number, since it uses less digits than its factorization.

13730771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13980.

The product of its (nonzero) digits is 3087, while the sum is 29.

The square root of 13730771 is about 3705.5054985791. The cubic root of 13730771 is about 239.4592629199.

The spelling of 13730771 in words is "thirteen million, seven hundred thirty thousand, seven hundred seventy-one".