87768000 has 336 divisors, whose sum is σ = 333792576. Its totient is φ = 21964800.

The previous prime is 87767993. The next prime is 87768001. The reversal of 87768000 is 86778.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87768001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1655974 + ... + 1656026.

Almost surely, 2^87768000 is an apocalyptic number.

87768000 is a gapful number since it is divisible by the number (80) 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 87768000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166896288).

87768000 is an abundant number, since it is smaller than the sum of its proper divisors (246024576).

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

87768000 is a wasteful number, since it uses less digits than its factorization.

87768000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 87768000 is about 9368.4577172553. The cubic root of 87768000 is about 444.4047927588.

The spelling of 87768000 in words is "eighty-seven million, seven hundred sixty-eight thousand".