87451432 has 16 divisors (see below), whose sum is σ = 164073600. Its totient is φ = 43698480.

The previous prime is 87451411. The next prime is 87451439. The reversal of 87451432 is 23415478.

It is not an unprimeable number, because it can be changed into a prime (87451439) 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 3 ways as a sum of consecutive naturals, for example, 18619 + ... + 22837.

It is an arithmetic number, because the mean of its divisors is an integer number (10254600).

Almost surely, 2^87451432 is an apocalyptic number.

It is an amenable number.

87451432 is a deficient number, since it is larger than the sum of its proper divisors (76622168).

87451432 is a wasteful number, since it uses less digits than its factorization.

87451432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816 (or 6812 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 87451432 is about 9351.5470377901. The cubic root of 87451432 is about 443.8698452469.

The spelling of 87451432 in words is "eighty-seven million, four hundred fifty-one thousand, four hundred thirty-two".