87544578 has 64 divisors (see below), whose sum is σ = 201636864. Its totient is φ = 25080000.

The previous prime is 87544559. The next prime is 87544621.

87544578 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 153033 + ... + 153603.

It is an arithmetic number, because the mean of its divisors is an integer number (3150576).

Almost surely, 2^87544578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87544578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100818432).

87544578 is an abundant number, since it is smaller than the sum of its proper divisors (114092286).

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

87544578 is a wasteful number, since it uses less digits than its factorization.

87544578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its digits is 1254400, while the sum is 48.

The square root of 87544578 is about 9356.5259578542. The cubic root of 87544578 is about 444.0273804233.

The spelling of 87544578 in words is "eighty-seven million, five hundred forty-four thousand, five hundred seventy-eight".