87439716 has 288 divisors, whose sum is σ = 300303360. Its totient is φ = 21772800.

The previous prime is 87439699. The next prime is 87439717. The reversal of 87439716 is 61793478.

Its product of digits (254016) is a multiple of the sum of its prime factors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87439717) 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 95 ways as a sum of consecutive naturals, for example, 2132656 + ... + 2132696.

It is an arithmetic number, because the mean of its divisors is an integer number (1042720).

Almost surely, 2^87439716 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 87439716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150151680).

87439716 is an abundant number, since it is smaller than the sum of its proper divisors (212863644).

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

87439716 is a wasteful number, since it uses less digits than its factorization.

87439716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 97 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 87439716 is about 9350.9205963905. The cubic root of 87439716 is about 443.8500223912.

The spelling of 87439716 in words is "eighty-seven million, four hundred thirty-nine thousand, seven hundred sixteen".