16103893 has 4 divisors (see below), whose sum is σ = 17342668. Its totient is φ = 14865120.

The previous prime is 16103881. The next prime is 16103929. The reversal of 16103893 is 39830161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39830161 = 7 ⋅5690023.

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 8803089 = 2702^2 + 2967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16103893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16103803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619368 + ... + 619393.

It is an arithmetic number, because the mean of its divisors is an integer number (4335667).

Almost surely, 2^16103893 is an apocalyptic number.

16103893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16103893 is a deficient number, since it is larger than the sum of its proper divisors (1238775).

16103893 is a wasteful number, since it uses less digits than its factorization.

16103893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238774.

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

The square root of 16103893 is about 4012.9656116144. The cubic root of 16103893 is about 252.5284377996.

The spelling of 16103893 in words is "sixteen million, one hundred three thousand, eight hundred ninety-three".