87164416 has 20 divisors (see below), whose sum is σ = 174159612. Its totient is φ = 43581952.

The previous prime is 87164369. The next prime is 87164449. The reversal of 87164416 is 61446178.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84610 + ... + 85633.

Almost surely, 2^87164416 is an apocalyptic number.

It is an amenable number.

87164416 is a deficient number, since it is larger than the sum of its proper divisors (86995196).

87164416 is an equidigital number, since it uses as much as digits as its factorization.

87164416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170261 (or 170245 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 87164416 is about 9336.1885156631. The cubic root of 87164416 is about 443.3837187475.

The spelling of 87164416 in words is "eighty-seven million, one hundred sixty-four thousand, four hundred sixteen".