28056718 has 8 divisors (see below), whose sum is σ = 42123312. Its totient is φ = 14015616.

The previous prime is 28056671. The next prime is 28056727. The reversal of 28056718 is 81765082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3330 + ... + 8197.

It is an arithmetic number, because the mean of its divisors is an integer number (5265414).

Almost surely, 2^28056718 is an apocalyptic number.

28056718 is a deficient number, since it is larger than the sum of its proper divisors (14066594).

28056718 is a wasteful number, since it uses less digits than its factorization.

28056718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12746.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 28056718 is about 5296.8592580887. The cubic root of 28056718 is about 303.8637937261.

The spelling of 28056718 in words is "twenty-eight million, fifty-six thousand, seven hundred eighteen".