87755740 has 24 divisors (see below), whose sum is σ = 190643040. Its totient is φ = 33891648.

The previous prime is 87755671. The next prime is 87755743. The reversal of 87755740 is 4755778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87755743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75072 + ... + 76231.

It is an arithmetic number, because the mean of its divisors is an integer number (7943460).

Almost surely, 2^87755740 is an apocalyptic number.

It is an amenable number.

87755740 is an abundant number, since it is smaller than the sum of its proper divisors (102887300).

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

87755740 is a wasteful number, since it uses less digits than its factorization.

87755740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151341 (or 151339 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 87755740 is about 9367.8033711217. The cubic root of 87755740 is about 444.3840993532.

The spelling of 87755740 in words is "eighty-seven million, seven hundred fifty-five thousand, seven hundred forty".