87432238 has 8 divisors (see below), whose sum is σ = 131280120. Its totient is φ = 43672200.

The previous prime is 87432227. The next prime is 87432259. The reversal of 87432238 is 83223478.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 87432197 and 87432206.

It is a congruent number.

It is an unprimeable number.

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, 19413 + ... + 23488.

It is an arithmetic number, because the mean of its divisors is an integer number (16410015).

Almost surely, 2^87432238 is an apocalyptic number.

87432238 is a deficient number, since it is larger than the sum of its proper divisors (43847882).

87432238 is a wasteful number, since it uses less digits than its factorization.

87432238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43922.

The product of its digits is 64512, while the sum is 37.

The square root of 87432238 is about 9350.5207341623. The cubic root of 87432238 is about 443.8373690827.

The spelling of 87432238 in words is "eighty-seven million, four hundred thirty-two thousand, two hundred thirty-eight".