28976832 has 112 divisors (see below), whose sum is σ = 87477600. Its totient is φ = 9400320.

The previous prime is 28976813. The next prime is 28976851. The reversal of 28976832 is 23867982.

It is an interprime number because it is at equal distance from previous prime (28976813) and next prime (28976851).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70644 + ... + 71052.

It is an arithmetic number, because the mean of its divisors is an integer number (781050).

Almost surely, 2^28976832 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 28976832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43738800).

28976832 is an abundant number, since it is smaller than the sum of its proper divisors (58500768).

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

28976832 is a wasteful number, since it uses less digits than its factorization.

28976832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 455 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28976832 is about 5383.0132825398. The cubic root of 28976832 is about 307.1498453276.

The spelling of 28976832 in words is "twenty-eight million, nine hundred seventy-six thousand, eight hundred thirty-two".