87491248 has 80 divisors (see below), whose sum is σ = 195924960. Its totient is φ = 37490688.

The previous prime is 87491177. The next prime is 87491249. The reversal of 87491248 is 84219478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87491249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385311 + ... + 385537.

It is an arithmetic number, because the mean of its divisors is an integer number (2449062).

Almost surely, 2^87491248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87491248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97962480).

87491248 is an abundant number, since it is smaller than the sum of its proper divisors (108433712).

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

87491248 is a wasteful number, since it uses less digits than its factorization.

87491248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 368 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 87491248 is about 9353.6756411584. The cubic root of 87491248 is about 443.9371985952.

The spelling of 87491248 in words is "eighty-seven million, four hundred ninety-one thousand, two hundred forty-eight".