13780801 has 4 divisors (see below), whose sum is σ = 13792212. Its totient is φ = 13769392.

The previous prime is 13780799. The next prime is 13780813. The reversal of 13780801 is 10808731.

It is a happy number.

13780801 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 10246401 + 3534400 = 3201^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 13780801 - 2¹ = 13780799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13780801.

It is not an unprimeable number, because it can be changed into a prime (13780831) 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, 3646 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (3448053).

Almost surely, 2^13780801 is an apocalyptic number.

It is an amenable number.

13780801 is a deficient number, since it is larger than the sum of its proper divisors (11411).

13780801 is a wasteful number, since it uses less digits than its factorization.

13780801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11410.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 13780801 is about 3712.2501262711. The cubic root of 13780801 is about 239.7497449294.

The spelling of 13780801 in words is "thirteen million, seven hundred eighty thousand, eight hundred one".