87531950 has 48 divisors (see below), whose sum is σ = 180591120. Its totient is φ = 31296000.

The previous prime is 87531943. The next prime is 87531959. The reversal of 87531950 is 5913578.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87531959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32246 + ... + 34854.

It is an arithmetic number, because the mean of its divisors is an integer number (3762315).

Almost surely, 2^87531950 is an apocalyptic number.

87531950 is an abundant number, since it is smaller than the sum of its proper divisors (93059170).

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

87531950 is a wasteful number, since it uses less digits than its factorization.

87531950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 87531950 is about 9355.8511104014. The cubic root of 87531950 is about 444.0060295964.

The spelling of 87531950 in words is "eighty-seven million, five hundred thirty-one thousand, nine hundred fifty".