28767672 has 96 divisors (see below), whose sum is σ = 86907600. Its totient is φ = 8543232.

The previous prime is 28767649. The next prime is 28767677. The reversal of 28767672 is 27676782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28767677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22638 + ... + 23874.

Almost surely, 2^28767672 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 28767672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43453800).

28767672 is an abundant number, since it is smaller than the sum of its proper divisors (58139928).

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

28767672 is a wasteful number, since it uses less digits than its factorization.

28767672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1278 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 28767672 is about 5363.5503167212. The cubic root of 28767672 is about 306.4090390387.

The spelling of 28767672 in words is "twenty-eight million, seven hundred sixty-seven thousand, six hundred seventy-two".