28077000 has 192 divisors, whose sum is σ = 102435840. Its totient is φ = 6384000.

The previous prime is 28076989. The next prime is 28077037. The reversal of 28077000 is 77082.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 47 ways as a sum of consecutive naturals, for example, 146905 + ... + 147095.

It is an arithmetic number, because the mean of its divisors is an integer number (533520).

Almost surely, 2^28077000 is an apocalyptic number.

28077000 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 28077000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51217920).

28077000 is an abundant number, since it is smaller than the sum of its proper divisors (74358840).

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

28077000 is a wasteful number, since it uses less digits than its factorization.

28077000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 28077000 is about 5298.7734429772. The cubic root of 28077000 is about 303.9369964079.

The spelling of 28077000 in words is "twenty-eight million, seventy-seven thousand".