87449808 has 20 divisors (see below), whose sum is σ = 225912128. Its totient is φ = 29149920.

The previous prime is 87449801. The next prime is 87449827. The reversal of 87449808 is 80894478.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1821871 = 87449808 / (8 + 7 + 4 + 4 + 9 + 8 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87449801) 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 3 ways as a sum of consecutive naturals, for example, 910888 + ... + 910983.

Almost surely, 2^87449808 is an apocalyptic number.

It is an amenable number.

87449808 is an abundant number, since it is smaller than the sum of its proper divisors (138462320).

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

87449808 is a wasteful number, since it uses less digits than its factorization.

87449808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821882 (or 1821876 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 87449808 is about 9351.4602068340. The cubic root of 87449808 is about 443.8670976300.

The spelling of 87449808 in words is "eighty-seven million, four hundred forty-nine thousand, eight hundred eight".