87007782 has 16 divisors (see below), whose sum is σ = 174228912. Its totient is φ = 28967040.

The previous prime is 87007769. The next prime is 87007787. The reversal of 87007782 is 28770078.

It is a self number, because there is not a number n which added to its sum of digits gives 87007782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87007787) 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 7 ways as a sum of consecutive naturals, for example, 3319 + ... + 13602.

It is an arithmetic number, because the mean of its divisors is an integer number (10889307).

Almost surely, 2^87007782 is an apocalyptic number.

87007782 is an abundant number, since it is smaller than the sum of its proper divisors (87221130).

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

87007782 is a wasteful number, since it uses less digits than its factorization.

87007782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17783.

The product of its (nonzero) digits is 43904, while the sum is 39.

The square root of 87007782 is about 9327.7962027480. The cubic root of 87007782 is about 443.1179734278.

The spelling of 87007782 in words is "eighty-seven million, seven thousand, seven hundred eighty-two".