87304143 has 4 divisors (see below), whose sum is σ = 116405528. Its totient is φ = 58202760.

The previous prime is 87304121. The next prime is 87304157. The reversal of 87304143 is 34140378.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87304143 - 2⁵ = 87304111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87304143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87304103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14550688 + ... + 14550693.

It is an arithmetic number, because the mean of its divisors is an integer number (29101382).

Almost surely, 2^87304143 is an apocalyptic number.

87304143 is a deficient number, since it is larger than the sum of its proper divisors (29101385).

87304143 is a wasteful number, since it uses less digits than its factorization.

87304143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29101384.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 87304143 is about 9343.6686049966. The cubic root of 87304143 is about 443.6205111038.

The spelling of 87304143 in words is "eighty-seven million, three hundred four thousand, one hundred forty-three".