13807870 has 16 divisors (see below), whose sum is σ = 26162640. Its totient is φ = 5232384.

The previous prime is 13807861. The next prime is 13807873. The reversal of 13807870 is 7870831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13807873) 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, 36147 + ... + 36526.

It is an arithmetic number, because the mean of its divisors is an integer number (1635165).

Almost surely, 2^13807870 is an apocalyptic number.

13807870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13807870 is a deficient number, since it is larger than the sum of its proper divisors (12354770).

13807870 is a wasteful number, since it uses less digits than its factorization.

13807870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72699.

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

The square root of 13807870 is about 3715.8942396145. The cubic root of 13807870 is about 239.9066187637.

The spelling of 13807870 in words is "thirteen million, eight hundred seven thousand, eight hundred seventy".