28076700 has 72 divisors (see below), whose sum is σ = 83883520. Its totient is φ = 7243200.

The previous prime is 28076683. The next prime is 28076717. The reversal of 28076700 is 767082.

It is an interprime number because it is at equal distance from previous prime (28076683) and next prime (28076717).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 7791 + ... + 10809.

Almost surely, 2^28076700 is an apocalyptic number.

28076700 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 28076700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41941760).

28076700 is an abundant number, since it is smaller than the sum of its proper divisors (55806820).

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

28076700 is a wasteful number, since it uses less digits than its factorization.

28076700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 28076700 is about 5298.7451344634. The cubic root of 28076700 is about 303.9359138917.

The spelling of 28076700 in words is "twenty-eight million, seventy-six thousand, seven hundred".