28934718 has 32 divisors (see below), whose sum is σ = 60582912. Its totient is φ = 9201600.

The previous prime is 28934707. The next prime is 28934723. The reversal of 28934718 is 81743982.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28934718.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12513 + ... + 14643.

It is an arithmetic number, because the mean of its divisors is an integer number (1893216).

Almost surely, 2^28934718 is an apocalyptic number.

28934718 is an abundant number, since it is smaller than the sum of its proper divisors (31648194).

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

28934718 is a wasteful number, since it uses less digits than its factorization.

28934718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240.

The product of its digits is 96768, while the sum is 42.

The square root of 28934718 is about 5379.1001106133. The cubic root of 28934718 is about 307.0009725979. Note that the first 3 decimals are identical.

The spelling of 28934718 in words is "twenty-eight million, nine hundred thirty-four thousand, seven hundred eighteen".