77116443 has 4 divisors (see below), whose sum is σ = 102821928. Its totient is φ = 51410960.

The previous prime is 77116433. The next prime is 77116451. The reversal of 77116443 is 34461177.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77116443 - 2⁴ = 77116427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77116433) 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, 12852738 + ... + 12852743.

It is an arithmetic number, because the mean of its divisors is an integer number (25705482).

Almost surely, 2^77116443 is an apocalyptic number.

77116443 is a deficient number, since it is larger than the sum of its proper divisors (25705485).

77116443 is a wasteful number, since it uses less digits than its factorization.

77116443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25705484.

The product of its digits is 14112, while the sum is 33.

The square root of 77116443 is about 8781.5968365668. The cubic root of 77116443 is about 425.6464312642.

The spelling of 77116443 in words is "seventy-seven million, one hundred sixteen thousand, four hundred forty-three".