76842943 has 4 divisors (see below), whose sum is σ = 76894288. Its totient is φ = 76791600.

The previous prime is 76842911. The next prime is 76842947. The reversal of 76842943 is 34924867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34924867 = 4091 ⋅8537.

It is a cyclic number.

It is not a de Polignac number, because 76842943 - 2⁵ = 76842911 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 76842943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76842947) 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, 23358 + ... + 26443.

It is an arithmetic number, because the mean of its divisors is an integer number (19223572).

Almost surely, 2^76842943 is an apocalyptic number.

76842943 is a deficient number, since it is larger than the sum of its proper divisors (51345).

76842943 is a wasteful number, since it uses less digits than its factorization.

76842943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51344.

The product of its digits is 290304, while the sum is 43.

The square root of 76842943 is about 8766.0106662039. The cubic root of 76842943 is about 425.1426381664.

The spelling of 76842943 in words is "seventy-six million, eight hundred forty-two thousand, nine hundred forty-three".