87508340 has 24 divisors (see below), whose sum is σ = 183984360. Its totient is φ = 34962048.

The previous prime is 87508331. The next prime is 87508349. The reversal of 87508340 is 4380578.

It is an interprime number because it is at equal distance from previous prime (87508331) and next prime (87508349).

It can be written as a sum of positive squares in 4 ways, for example, as 5895184 + 81613156 = 2428^2 + 9034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87508340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87508349) 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, 19334 + ... + 23426.

It is an arithmetic number, because the mean of its divisors is an integer number (7666015).

Almost surely, 2^87508340 is an apocalyptic number.

It is an amenable number.

87508340 is an abundant number, since it is smaller than the sum of its proper divisors (96476020).

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

87508340 is a wasteful number, since it uses less digits than its factorization.

87508340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171 (or 5169 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 87508340 is about 9354.5892480643. The cubic root of 87508340 is about 443.9661054125.

The spelling of 87508340 in words is "eighty-seven million, five hundred eight thousand, three hundred forty".