87509958 has 32 divisors (see below), whose sum is σ = 183596544. Its totient is φ = 27774432.

The previous prime is 87509951. The next prime is 87509977. The reversal of 87509958 is 85990578.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87509958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87509951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6241 + ... + 14627.

It is an arithmetic number, because the mean of its divisors is an integer number (5737392).

Almost surely, 2^87509958 is an apocalyptic number.

87509958 is an abundant number, since it is smaller than the sum of its proper divisors (96086586).

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

87509958 is a wasteful number, since it uses less digits than its factorization.

87509958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476.

The product of its (nonzero) digits is 907200, while the sum is 51.

The square root of 87509958 is about 9354.6757292811. The cubic root of 87509958 is about 443.9688416573.

The spelling of 87509958 in words is "eighty-seven million, five hundred nine thousand, nine hundred fifty-eight".