28670752 has 48 divisors (see below), whose sum is σ = 62923392. Its totient is φ = 12747520.

The previous prime is 28670731. The next prime is 28670777. The reversal of 28670752 is 25707682.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15678 + ... + 17410.

It is an arithmetic number, because the mean of its divisors is an integer number (1310904).

Almost surely, 2^28670752 is an apocalyptic number.

28670752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28670752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31461696).

28670752 is an abundant number, since it is smaller than the sum of its proper divisors (34252640).

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

28670752 is a wasteful number, since it uses less digits than its factorization.

28670752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801 (or 1793 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 28670752 is about 5354.5076337605. The cubic root of 28670752 is about 306.0645484460.

The spelling of 28670752 in words is "twenty-eight million, six hundred seventy thousand, seven hundred fifty-two".