87825544 has 32 divisors (see below), whose sum is σ = 167207040. Its totient is φ = 43243200.

The previous prime is 87825539. The next prime is 87825557. The reversal of 87825544 is 44552878.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87825544.

It is an unprimeable number.

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, 189457 + ... + 189919.

It is an arithmetic number, because the mean of its divisors is an integer number (5225220).

Almost surely, 2^87825544 is an apocalyptic number.

It is an amenable number.

87825544 is a deficient number, since it is larger than the sum of its proper divisors (79381496).

87825544 is a wasteful number, since it uses less digits than its factorization.

87825544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 777 counting only the distinct ones).

The product of its digits is 358400, while the sum is 43.

The square root of 87825544 is about 9371.5283705487. The cubic root of 87825544 is about 444.5018943699.

The spelling of 87825544 in words is "eighty-seven million, eight hundred twenty-five thousand, five hundred forty-four".