87980382 has 72 divisors (see below), whose sum is σ = 231440976. Its totient is φ = 24038784.

The previous prime is 87980369. The next prime is 87980479. The reversal of 87980382 is 28308978.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18118 + ... + 22454.

It is an arithmetic number, because the mean of its divisors is an integer number (3214458).

Almost surely, 2^87980382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87980382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115720488).

87980382 is an abundant number, since it is smaller than the sum of its proper divisors (143460594).

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

87980382 is a wasteful number, since it uses less digits than its factorization.

87980382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382 (or 4372 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 87980382 is about 9379.7858184502. The cubic root of 87980382 is about 444.7629625957.

The spelling of 87980382 in words is "eighty-seven million, nine hundred eighty thousand, three hundred eighty-two".