13800621 has 8 divisors (see below), whose sum is σ = 19200960. Its totient is φ = 8800352.

The previous prime is 13800581. The next prime is 13800629. The reversal of 13800621 is 12600831.

13800621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13800621 - 2⁶ = 13800557 is a prime.

13800621 is a modest number, since divided by 621 gives 138 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13800629) 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, 99936 + ... + 100073.

It is an arithmetic number, because the mean of its divisors is an integer number (2400120).

Almost surely, 2^13800621 is an apocalyptic number.

It is an amenable number.

13800621 is a deficient number, since it is larger than the sum of its proper divisors (5400339).

13800621 is a wasteful number, since it uses less digits than its factorization.

13800621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200035.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 13800621 is about 3714.9187070513. The cubic root of 13800621 is about 239.8646285195.

The spelling of 13800621 in words is "thirteen million, eight hundred thousand, six hundred twenty-one".