28673760 has 192 divisors, whose sum is σ = 97542144. Its totient is φ = 7065600.

The previous prime is 28673759. The next prime is 28673773. The reversal of 28673760 is 6737682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 610057 + ... + 610103.

It is an arithmetic number, because the mean of its divisors is an integer number (508032).

Almost surely, 2^28673760 is an apocalyptic number.

28673760 is a gapful number since it is divisible by the number (20) 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 28673760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48771072).

28673760 is an abundant number, since it is smaller than the sum of its proper divisors (68868384).

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

28673760 is a wasteful number, since it uses less digits than its factorization.

28673760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 28673760 is about 5354.7885112299. The cubic root of 28673760 is about 306.0752516878.

The spelling of 28673760 in words is "twenty-eight million, six hundred seventy-three thousand, seven hundred sixty".