28776192 has 72 divisors (see below), whose sum is σ = 77631120. Its totient is φ = 9461760.

The previous prime is 28776157. The next prime is 28776193. The reversal of 28776192 is 29167782.

It is a super-3 number, since 3×28776192³ (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 (28776193) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68142 + ... + 68562.

It is an arithmetic number, because the mean of its divisors is an integer number (1078210).

Almost surely, 2^28776192 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 28776192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38815560).

28776192 is an abundant number, since it is smaller than the sum of its proper divisors (48854928).

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

28776192 is an equidigital number, since it uses as much as digits as its factorization.

28776192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 515 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 28776192 is about 5364.3445079525. The cubic root of 28776192 is about 306.4392853436.

The spelling of 28776192 in words is "twenty-eight million, seven hundred seventy-six thousand, one hundred ninety-two".