28963548 has 96 divisors (see below), whose sum is σ = 79779840. Its totient is φ = 9072000.

The previous prime is 28963541. The next prime is 28963549. The reversal of 28963548 is 84536982.

28963548 is a `hidden beast` number, since 2 + 8 + 9 + 635 + 4 + 8 = 666.

It is a super-2 number, since 2×28963548² = 1677774225496608, which contains 22 as substring.

Its product of digits (414720) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28963541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137163 + ... + 137373.

It is an arithmetic number, because the mean of its divisors is an integer number (831040).

Almost surely, 2^28963548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28963548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39889920).

28963548 is an abundant number, since it is smaller than the sum of its proper divisors (50816292).

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

28963548 is a wasteful number, since it uses less digits than its factorization.

28963548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 288 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 28963548 is about 5381.7792596873. The cubic root of 28963548 is about 307.1029020523.

The spelling of 28963548 in words is "twenty-eight million, nine hundred sixty-three thousand, five hundred forty-eight".