87853390 has 16 divisors (see below), whose sum is σ = 158474880. Its totient is φ = 35066080.

The previous prime is 87853369. The next prime is 87853391. The reversal of 87853390 is 9335878.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87853391) 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, 4381 + ... + 13960.

It is an arithmetic number, because the mean of its divisors is an integer number (9904680).

Almost surely, 2^87853390 is an apocalyptic number.

87853390 is a deficient number, since it is larger than the sum of its proper divisors (70621490).

87853390 is a wasteful number, since it uses less digits than its factorization.

87853390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18827.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 87853390 is about 9373.0139229599. The cubic root of 87853390 is about 444.5488673850.

The spelling of 87853390 in words is "eighty-seven million, eight hundred fifty-three thousand, three hundred ninety".