87047482 has 4 divisors (see below), whose sum is σ = 130571226. Its totient is φ = 43523740.

The previous prime is 87047453. The next prime is 87047483. The reversal of 87047482 is 28474078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28474078 = 2 ⋅14237039.

It can be written as a sum of positive squares in only one way, i.e., 86471401 + 576081 = 9299^2 + 759^2 .

It is not an unprimeable number, because it can be changed into a prime (87047483) 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 as a sum of consecutive naturals, namely, 21761869 + ... + 21761872.

Almost surely, 2^87047482 is an apocalyptic number.

87047482 is a deficient number, since it is larger than the sum of its proper divisors (43523744).

87047482 is a wasteful number, since it uses less digits than its factorization.

87047482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43523743.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 87047482 is about 9329.9240082650. The cubic root of 87047482 is about 443.1853586211.

The spelling of 87047482 in words is "eighty-seven million, forty-seven thousand, four hundred eighty-two".