13907305 has 8 divisors (see below), whose sum is σ = 16735752. Its totient is φ = 11094528.

The previous prime is 13907293. The next prime is 13907317. The reversal of 13907305 is 50370931.

13907305 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13907293) and next prime (13907317).

It can be written as a sum of positive squares in 4 ways, for example, as 795664 + 13111641 = 892^2 + 3621^2 .

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 13907305 - 2¹⁵ = 13874537 is a prime.

It is a super-3 number, since 3×13907305³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1864 + ... + 5593.

It is an arithmetic number, because the mean of its divisors is an integer number (2091969).

Almost surely, 2^13907305 is an apocalyptic number.

13907305 is the 1865-th decagonal number.

It is an amenable number.

13907305 is a deficient number, since it is larger than the sum of its proper divisors (2828447).

13907305 is an equidigital number, since it uses as much as digits as its factorization.

13907305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7835.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 13907305 is about 3729.2499245827. The cubic root of 13907305 is about 240.4811239747.

The spelling of 13907305 in words is "thirteen million, nine hundred seven thousand, three hundred five".