87891296 has 12 divisors (see below), whose sum is σ = 173036052. Its totient is φ = 43945632.

The previous prime is 87891289. The next prime is 87891299. The reversal of 87891296 is 69219878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87891299) 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 as a sum of consecutive naturals, namely, 1373270 + ... + 1373333.

It is an arithmetic number, because the mean of its divisors is an integer number (14419671).

Almost surely, 2^87891296 is an apocalyptic number.

It is an amenable number.

87891296 is a deficient number, since it is larger than the sum of its proper divisors (85144756).

87891296 is a wasteful number, since it uses less digits than its factorization.

87891296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746613 (or 2746605 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 87891296 is about 9375.0357865984. The cubic root of 87891296 is about 444.6127945193.

The spelling of 87891296 in words is "eighty-seven million, eight hundred ninety-one thousand, two hundred ninety-six".