87881794 has 48 divisors (see below), whose sum is σ = 180182016. Its totient is φ = 31600800.

The previous prime is 87881779. The next prime is 87881797. The reversal of 87881794 is 49718878.

It is not an unprimeable number, because it can be changed into a prime (87881797) 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 23 ways as a sum of consecutive naturals, for example, 10879 + ... + 17149.

It is an arithmetic number, because the mean of its divisors is an integer number (3753792).

Almost surely, 2^87881794 is an apocalyptic number.

87881794 is an abundant number, since it is smaller than the sum of its proper divisors (92300222).

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

87881794 is a wasteful number, since it uses less digits than its factorization.

87881794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311 (or 6304 counting only the distinct ones).

The product of its digits is 903168, while the sum is 52.

The square root of 87881794 is about 9374.5290015019. The cubic root of 87881794 is about 444.5967714574.

The spelling of 87881794 in words is "eighty-seven million, eight hundred eighty-one thousand, seven hundred ninety-four".