87609760 has 192 divisors, whose sum is σ = 261273600. Its totient is φ = 27067392.

The previous prime is 87609733. The next prime is 87609761. The reversal of 87609760 is 6790678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87609761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489351 + ... + 489529.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^87609760 is an apocalyptic number.

87609760 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 87609760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130636800).

87609760 is an abundant number, since it is smaller than the sum of its proper divisors (173663840).

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

87609760 is a wasteful number, since it uses less digits than its factorization.

87609760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 87609760 is about 9360.0085470046. The cubic root of 87609760 is about 444.1375544367.

The spelling of 87609760 in words is "eighty-seven million, six hundred nine thousand, seven hundred sixty".