87318043 has 4 divisors (see below), whose sum is σ = 90329040. Its totient is φ = 84307048.

The previous prime is 87318029. The next prime is 87318059. The reversal of 87318043 is 34081378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34081378 = 2 ⋅17040689.

It is a cyclic number.

It is not a de Polignac number, because 87318043 - 2¹⁷ = 87186971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87318013) 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, 1505455 + ... + 1505512.

It is an arithmetic number, because the mean of its divisors is an integer number (22582260).

Almost surely, 2^87318043 is an apocalyptic number.

87318043 is a deficient number, since it is larger than the sum of its proper divisors (3010997).

87318043 is a wasteful number, since it uses less digits than its factorization.

87318043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010996.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 87318043 is about 9344.4123945811. The cubic root of 87318043 is about 443.6440533157.

The spelling of 87318043 in words is "eighty-seven million, three hundred eighteen thousand, forty-three".