28557714 has 16 divisors (see below), whose sum is σ = 57168000. Its totient is φ = 9510480.

The previous prime is 28557707. The next prime is 28557731. The reversal of 28557714 is 41775582.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10804 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (3573000).

Almost surely, 2^28557714 is an apocalyptic number.

28557714 is an abundant number, since it is smaller than the sum of its proper divisors (28610286).

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

28557714 is a wasteful number, since it uses less digits than its factorization.

28557714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385.

The product of its digits is 78400, while the sum is 39.

The square root of 28557714 is about 5343.9418035753. The cubic root of 28557714 is about 305.6617861718.

The spelling of 28557714 in words is "twenty-eight million, five hundred fifty-seven thousand, seven hundred fourteen".