87785382 has 16 divisors (see below), whose sum is σ = 185898672. Its totient is φ = 27540480.

The previous prime is 87785363. The next prime is 87785389. The reversal of 87785382 is 28358778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87785389) 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, 430219 + ... + 430422.

It is an arithmetic number, because the mean of its divisors is an integer number (11618667).

Almost surely, 2^87785382 is an apocalyptic number.

87785382 is an abundant number, since it is smaller than the sum of its proper divisors (98113290).

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

87785382 is a wasteful number, since it uses less digits than its factorization.

87785382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860663.

The product of its digits is 752640, while the sum is 48.

The square root of 87785382 is about 9369.3853587095. The cubic root of 87785382 is about 444.4341281818.

The spelling of 87785382 in words is "eighty-seven million, seven hundred eighty-five thousand, three hundred eighty-two".