87173416 has 32 divisors (see below), whose sum is σ = 188801280. Its totient is φ = 37292800.

The previous prime is 87173413. The next prime is 87173417. The reversal of 87173416 is 61437178.

87173416 = T₄₃₉ + T₄₄₀ + ... + T₈₄₆.

It is not an unprimeable number, because it can be changed into a prime (87173413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27640 + ... + 30631.

It is an arithmetic number, because the mean of its divisors is an integer number (5900040).

Almost surely, 2^87173416 is an apocalyptic number.

It is an amenable number.

87173416 is an abundant number, since it is smaller than the sum of its proper divisors (101627864).

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

87173416 is a wasteful number, since it uses less digits than its factorization.

87173416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58305 (or 58301 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 87173416 is about 9336.6704986307. The cubic root of 87173416 is about 443.3989784766.

The spelling of 87173416 in words is "eighty-seven million, one hundred seventy-three thousand, four hundred sixteen".