16938361 has 8 divisors (see below), whose sum is σ = 18643104. Its totient is φ = 15261120.

The previous prime is 16938359. The next prime is 16938379. The reversal of 16938361 is 16383961.

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 16938361 - 2¹ = 16938359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16938361.

It is not an unprimeable number, because it can be changed into a prime (16938301) 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, 5571 + ... + 8056.

It is an arithmetic number, because the mean of its divisors is an integer number (2330388).

Almost surely, 2^16938361 is an apocalyptic number.

16938361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16938361 is a deficient number, since it is larger than the sum of its proper divisors (1704743).

16938361 is a wasteful number, since it uses less digits than its factorization.

16938361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751.

The product of its digits is 23328, while the sum is 37.

The square root of 16938361 is about 4115.6240110098. The cubic root of 16938361 is about 256.8170156021.

The spelling of 16938361 in words is "sixteen million, nine hundred thirty-eight thousand, three hundred sixty-one".