87767316 has 144 divisors (see below), whose sum is σ = 277548544. Its totient is φ = 22768128.

The previous prime is 87767297. The next prime is 87767321. The reversal of 87767316 is 61376778.

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 (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238965 + ... + 239331.

Almost surely, 2^87767316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87767316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138774272).

87767316 is an abundant number, since it is smaller than the sum of its proper divisors (189781228).

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

87767316 is a wasteful number, since it uses less digits than its factorization.

87767316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 465 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 87767316 is about 9368.4212117090. The cubic root of 87767316 is about 444.4036382998.

The spelling of 87767316 in words is "eighty-seven million, seven hundred sixty-seven thousand, three hundred sixteen".