13908386 has 8 divisors (see below), whose sum is σ = 21097260. Its totient is φ = 6875968.

The previous prime is 13908383. The next prime is 13908409. The reversal of 13908386 is 68380931.

It can be written as a sum of positive squares in 2 ways, for example, as 13875625 + 32761 = 3725^2 + 181^2 .

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

It is a super-2 number, since 2×13908386² = 386886402249992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13908383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38891 + ... + 39246.

Almost surely, 2^13908386 is an apocalyptic number.

13908386 is a deficient number, since it is larger than the sum of its proper divisors (7188874).

13908386 is an equidigital number, since it uses as much as digits as its factorization.

13908386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78228.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 13908386 is about 3729.3948570780. The cubic root of 13908386 is about 240.4873545938.

The spelling of 13908386 in words is "thirteen million, nine hundred eight thousand, three hundred eighty-six".