87235500 has 192 divisors, whose sum is σ = 294368256. Its totient is φ = 19840000.

The previous prime is 87235487. The next prime is 87235523. The reversal of 87235500 is 553278.

It is a happy number.

It is a super-2 number, since 2×87235500² = 15220064920500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 280345 + ... + 280655.

It is an arithmetic number, because the mean of its divisors is an integer number (1533168).

Almost surely, 2^87235500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87235500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147184128).

87235500 is an abundant number, since it is smaller than the sum of its proper divisors (207132756).

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

87235500 is a wasteful number, since it uses less digits than its factorization.

87235500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 87235500 is about 9339.9946466794. The cubic root of 87235500 is about 443.5042148777.

Adding to 87235500 its reverse (553278), we get a palindrome (87788778).

The spelling of 87235500 in words is "eighty-seven million, two hundred thirty-five thousand, five hundred".