87491488 has 48 divisors (see below), whose sum is σ = 198362304. Its totient is φ = 37209600.

The previous prime is 87491479. The next prime is 87491489. The reversal of 87491488 is 88419478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87491489) 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 7 ways as a sum of consecutive naturals, for example, 29263 + ... + 32113.

It is an arithmetic number, because the mean of its divisors is an integer number (4132548).

Almost surely, 2^87491488 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 87491488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99181152).

87491488 is an abundant number, since it is smaller than the sum of its proper divisors (110870816).

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

87491488 is a wasteful number, since it uses less digits than its factorization.

87491488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 2997 counting only the distinct ones).

The product of its digits is 516096, while the sum is 49.

The square root of 87491488 is about 9353.6884703308. The cubic root of 87491488 is about 443.9376045209.

The spelling of 87491488 in words is "eighty-seven million, four hundred ninety-one thousand, four hundred eighty-eight".