87638752 has 24 divisors (see below), whose sum is σ = 173503512. Its totient is φ = 43574400.

The previous prime is 87638731. The next prime is 87638753. The reversal of 87638752 is 25783678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87638753) 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, 1774 + ... + 13357.

It is an arithmetic number, because the mean of its divisors is an integer number (7229313).

Almost surely, 2^87638752 is an apocalyptic number.

It is an amenable number.

87638752 is a deficient number, since it is larger than the sum of its proper divisors (85864760).

87638752 is a wasteful number, since it uses less digits than its factorization.

87638752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15322 (or 15314 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 87638752 is about 9361.5571354343. The cubic root of 87638752 is about 444.1865406679.

The spelling of 87638752 in words is "eighty-seven million, six hundred thirty-eight thousand, seven hundred fifty-two".