87993416 has 24 divisors (see below), whose sum is σ = 191925270. Its totient is φ = 37711296.

The previous prime is 87993403. The next prime is 87993419. The reversal of 87993416 is 61439978.

It can be written as a sum of positive squares in only one way, i.e., 73170916 + 14822500 = 8554^2 + 3850^2 .

It is not an unprimeable number, because it can be changed into a prime (87993419) 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 5 ways as a sum of consecutive naturals, for example, 111845 + ... + 112628.

Almost surely, 2^87993416 is an apocalyptic number.

It is an amenable number.

87993416 is an abundant number, since it is smaller than the sum of its proper divisors (103931854).

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

87993416 is a wasteful number, since it uses less digits than its factorization.

87993416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224493 (or 224482 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 87993416 is about 9380.4805847035. The cubic root of 87993416 is about 444.7849248941.

The spelling of 87993416 in words is "eighty-seven million, nine hundred ninety-three thousand, four hundred sixteen".