13639882 has 8 divisors (see below), whose sum is σ = 21663396. Its totient is φ = 6418752.

The previous prime is 13639867. The next prime is 13639919. The reversal of 13639882 is 28893631.

It can be written as a sum of positive squares in 2 ways, for example, as 10439361 + 3200521 = 3231^2 + 1789^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200553 + ... + 200620.

Almost surely, 2^13639882 is an apocalyptic number.

13639882 is a deficient number, since it is larger than the sum of its proper divisors (8023514).

13639882 is a wasteful number, since it uses less digits than its factorization.

13639882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401192.

The product of its digits is 62208, while the sum is 40.

The square root of 13639882 is about 3693.2210873437. The cubic root of 13639882 is about 238.9297366442.

The spelling of 13639882 in words is "thirteen million, six hundred thirty-nine thousand, eight hundred eighty-two".