16278093 has 18 divisors (see below), whose sum is σ = 25389546. Its totient is φ = 9990432.

The previous prime is 16278091. The next prime is 16278127. The reversal of 16278093 is 39087261.

16278093 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 927369 + 15350724 = 963^2 + 3918^2 .

It is not a de Polignac number, because 16278093 - 2¹ = 16278091 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16278091) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43455 + ... + 43827.

Almost surely, 2^16278093 is an apocalyptic number.

16278093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16278093 is a deficient number, since it is larger than the sum of its proper divisors (9111453).

16278093 is an equidigital number, since it uses as much as digits as its factorization.

16278093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 16278093 is about 4034.6118772442. The cubic root of 16278093 is about 253.4357294205.

The spelling of 16278093 in words is "sixteen million, two hundred seventy-eight thousand, ninety-three".