16728678 has 24 divisors (see below), whose sum is σ = 36335208. Its totient is φ = 5562432.

The previous prime is 16728671. The next prime is 16728689. The reversal of 16728678 is 87682761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16728671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8526 + ... + 10302.

It is an arithmetic number, because the mean of its divisors is an integer number (1513967).

Almost surely, 2^16728678 is an apocalyptic number.

16728678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16728678 is an abundant number, since it is smaller than the sum of its proper divisors (19606530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16728678 is a wasteful number, since it uses less digits than its factorization.

16728678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2305 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 16728678 is about 4090.0706595363. The cubic root of 16728678 is about 255.7528845029.

The spelling of 16728678 in words is "sixteen million, seven hundred twenty-eight thousand, six hundred seventy-eight".