87398850 has 288 divisors, whose sum is σ = 293124096. Its totient is φ = 17001600.

The previous prime is 87398849. The next prime is 87398851. The reversal of 87398850 is 5889378.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87398849) and next prime (87398851).

It is a self number, because there is not a number n which added to its sum of digits gives 87398850.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87398851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1859527 + ... + 1859573.

It is an arithmetic number, because the mean of its divisors is an integer number (1017792).

Almost surely, 2^87398850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87398850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146562048).

87398850 is an abundant number, since it is smaller than the sum of its proper divisors (205725246).

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

87398850 is a wasteful number, since it uses less digits than its factorization.

87398850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 87398850 is about 9348.7352085723. The cubic root of 87398850 is about 443.7808654058.

The spelling of 87398850 in words is "eighty-seven million, three hundred ninety-eight thousand, eight hundred fifty".