28743276 has 24 divisors (see below), whose sum is σ = 70598080. Its totient is φ = 9076752.

The previous prime is 28743269. The next prime is 28743289. The reversal of 28743276 is 67234782.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 62806 + ... + 63261.

Almost surely, 2^28743276 is an apocalyptic number.

It is an amenable number.

28743276 is an abundant number, since it is smaller than the sum of its proper divisors (41854804).

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

28743276 is a wasteful number, since it uses less digits than its factorization.

28743276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126093 (or 126091 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 28743276 is about 5361.2755944831. The cubic root of 28743276 is about 306.3223993206.

The spelling of 28743276 in words is "twenty-eight million, seven hundred forty-three thousand, two hundred seventy-six".