87102750 has 128 divisors (see below), whose sum is σ = 254472192. Its totient is φ = 19430400.

The previous prime is 87102749. The next prime is 87102751. The reversal of 87102750 is 5720178.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87102749) and next prime (87102751).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87102751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 246574 + ... + 246926.

It is an arithmetic number, because the mean of its divisors is an integer number (1988064).

Almost surely, 2^87102750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87102750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127236096).

87102750 is an abundant number, since it is smaller than the sum of its proper divisors (167369442).

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

87102750 is a wasteful number, since it uses less digits than its factorization.

87102750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 87102750 is about 9332.8854059182. The cubic root of 87102750 is about 443.2791342088.

The spelling of 87102750 in words is "eighty-seven million, one hundred two thousand, seven hundred fifty".