87343843 has 4 divisors (see below), whose sum is σ = 88540408. Its totient is φ = 86147280.

The previous prime is 87343831. The next prime is 87343859. The reversal of 87343843 is 34834378.

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: 34834378 = 2 ⋅17417189.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87343843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87343796 and 87343805.

It is not an unprimeable number, because it can be changed into a prime (87343873) 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, 598173 + ... + 598318.

It is an arithmetic number, because the mean of its divisors is an integer number (22135102).

Almost surely, 2^87343843 is an apocalyptic number.

87343843 is a deficient number, since it is larger than the sum of its proper divisors (1196565).

87343843 is a wasteful number, since it uses less digits than its factorization.

87343843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196564.

The product of its digits is 193536, while the sum is 40.

The square root of 87343843 is about 9345.7927967615. The cubic root of 87343843 is about 443.6877437491.

The spelling of 87343843 in words is "eighty-seven million, three hundred forty-three thousand, eight hundred forty-three".