13780807 has 8 divisors (see below), whose sum is σ = 14129280. Its totient is φ = 13436280.

The previous prime is 13780799. The next prime is 13780813. The reversal of 13780807 is 70808731.

It is a happy number.

13780807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13780807 - 2³ = 13780799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6838 + ... + 8620.

It is an arithmetic number, because the mean of its divisors is an integer number (1766160).

Almost surely, 2^13780807 is an apocalyptic number.

13780807 is a deficient number, since it is larger than the sum of its proper divisors (348473).

13780807 is a wasteful number, since it uses less digits than its factorization.

13780807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 13780807 is about 3712.2509344062. The cubic root of 13780807 is about 239.7497797241.

The spelling of 13780807 in words is "thirteen million, seven hundred eighty thousand, eight hundred seven".