76444243 has 4 divisors (see below), whose sum is σ = 76714648. Its totient is φ = 76173840.

The previous prime is 76444241. The next prime is 76444259. The reversal of 76444243 is 34244467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34244467 = 947 ⋅36161.

It is a cyclic number.

It is not a de Polignac number, because 76444243 - 2¹ = 76444241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76444199 and 76444208.

It is not an unprimeable number, because it can be changed into a prime (76444241) 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, 134778 + ... + 135343.

It is an arithmetic number, because the mean of its divisors is an integer number (19178662).

Almost surely, 2^76444243 is an apocalyptic number.

76444243 is a deficient number, since it is larger than the sum of its proper divisors (270405).

76444243 is a wasteful number, since it uses less digits than its factorization.

76444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270404.

The product of its digits is 64512, while the sum is 34.

The square root of 76444243 is about 8743.2398457322. The cubic root of 76444243 is about 424.4060778991.

The spelling of 76444243 in words is "seventy-six million, four hundred forty-four thousand, two hundred forty-three".