87173352 has 72 divisors (see below), whose sum is σ = 274651650. Its totient is φ = 24905664.

The previous prime is 87173351. The next prime is 87173363. The reversal of 87173352 is 25337178.

It can be written as a sum of positive squares in only one way, i.e., 68459076 + 18714276 = 8274^2 + 4326^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (87173351) 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 17 ways as a sum of consecutive naturals, for example, 8827 + ... + 15882.

Almost surely, 2^87173352 is an apocalyptic number.

It is an amenable number.

87173352 is an abundant number, since it is smaller than the sum of its proper divisors (187478298).

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

87173352 is a wasteful number, since it uses less digits than its factorization.

87173352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24735 (or 24721 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 87173352 is about 9336.6670712841. The cubic root of 87173352 is about 443.3988699667.

The spelling of 87173352 in words is "eighty-seven million, one hundred seventy-three thousand, three hundred fifty-two".