76243047 has 4 divisors (see below), whose sum is σ = 101657400. Its totient is φ = 50828696.

The previous prime is 76243039. The next prime is 76243109. The reversal of 76243047 is 74034267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74034267 = 3 ⋅24678089.

It is a cyclic number.

It is not a de Polignac number, because 76243047 - 2³ = 76243039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76242999 and 76243017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76243547) 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, 12707172 + ... + 12707177.

It is an arithmetic number, because the mean of its divisors is an integer number (25414350).

Almost surely, 2^76243047 is an apocalyptic number.

76243047 is a deficient number, since it is larger than the sum of its proper divisors (25414353).

76243047 is a wasteful number, since it uses less digits than its factorization.

76243047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25414352.

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 76243047 is about 8731.7264615882. The cubic root of 76243047 is about 424.0334148787.

The spelling of 76243047 in words is "seventy-six million, two hundred forty-three thousand, forty-seven".