13639801 has 8 divisors (see below), whose sum is σ = 15620544. Its totient is φ = 11667120.

The previous prime is 13639799. The next prime is 13639807. The reversal of 13639801 is 10893631.

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 13639801 - 2¹ = 13639799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13639807) 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, 2211 + ... + 5671.

It is an arithmetic number, because the mean of its divisors is an integer number (1952568).

Almost surely, 2^13639801 is an apocalyptic number.

It is an amenable number.

13639801 is a deficient number, since it is larger than the sum of its proper divisors (1980743).

13639801 is an equidigital number, since it uses as much as digits as its factorization.

13639801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13639801 is about 3693.2101212901. The cubic root of 13639801 is about 238.9292636844.

The spelling of 13639801 in words is "thirteen million, six hundred thirty-nine thousand, eight hundred one".