28757876 has 12 divisors (see below), whose sum is σ = 57515808. Its totient is φ = 12324792.

The previous prime is 28757873. The next prime is 28757893. The reversal of 28757876 is 67875782.

28757876 is an admirable number.

It is a super-3 number, since 3×28757876³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28757873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513506 + ... + 513561.

It is an arithmetic number, because the mean of its divisors is an integer number (4792984).

Almost surely, 2^28757876 is an apocalyptic number.

It is an amenable number.

28757876 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28757876 is a wasteful number, since it uses less digits than its factorization.

28757876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027078 (or 1027076 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 50.

The square root of 28757876 is about 5362.6370378760. The cubic root of 28757876 is about 306.3742555068.

The spelling of 28757876 in words is "twenty-eight million, seven hundred fifty-seven thousand, eight hundred seventy-six".