87169408 has 16 divisors (see below), whose sum is σ = 173658060. Its totient is φ = 43584640.

The previous prime is 87169393. The next prime is 87169429. The reversal of 87169408 is 80496178.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340378 + ... + 340633.

Almost surely, 2^87169408 is an apocalyptic number.

It is an amenable number.

87169408 is a deficient number, since it is larger than the sum of its proper divisors (86488652).

87169408 is an equidigital number, since it uses as much as digits as its factorization.

87169408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681025 (or 681013 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 87169408 is about 9336.4558586222. The cubic root of 87169408 is about 443.3921829403.

The spelling of 87169408 in words is "eighty-seven million, one hundred sixty-nine thousand, four hundred eight".