87745828 has 24 divisors (see below), whose sum is σ = 160659072. Its totient is φ = 41853504.

The previous prime is 87745807. The next prime is 87745829. The reversal of 87745828 is 82854778.

It is not an unprimeable number, because it can be changed into a prime (87745829) 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 7 ways as a sum of consecutive naturals, for example, 41001 + ... + 43087.

It is an arithmetic number, because the mean of its divisors is an integer number (6694128).

Almost surely, 2^87745828 is an apocalyptic number.

It is an amenable number.

87745828 is a deficient number, since it is larger than the sum of its proper divisors (72913244).

87745828 is a wasteful number, since it uses less digits than its factorization.

87745828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2569 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 49.

The square root of 87745828 is about 9367.2743100648. The cubic root of 87745828 is about 444.3673676802.

The spelling of 87745828 in words is "eighty-seven million, seven hundred forty-five thousand, eight hundred twenty-eight".