87828890 has 32 divisors (see below), whose sum is σ = 163814400. Its totient is φ = 33868800.

The previous prime is 87828889. The next prime is 87828899. The reversal of 87828890 is 9882878.

It is not an unprimeable number, because it can be changed into a prime (87828899) 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 15 ways as a sum of consecutive naturals, for example, 138875 + ... + 139505.

It is an arithmetic number, because the mean of its divisors is an integer number (5119200).

Almost surely, 2^87828890 is an apocalyptic number.

87828890 is a deficient number, since it is larger than the sum of its proper divisors (75985510).

87828890 is a wasteful number, since it uses less digits than its factorization.

87828890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118.

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 87828890 is about 9371.7068882888. The cubic root of 87828890 is about 444.5075392137.

The spelling of 87828890 in words is "eighty-seven million, eight hundred twenty-eight thousand, eight hundred ninety".