77321043 has 6 divisors (see below), whose sum is σ = 111685964. Its totient is φ = 51547356.

The previous prime is 77321033. The next prime is 77321081. The reversal of 77321043 is 34012377.

It is not a de Polignac number, because 77321043 - 2⁶ = 77320979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77320998 and 77321016.

It is not an unprimeable number, because it can be changed into a prime (77321033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4295605 + ... + 4295622.

Almost surely, 2^77321043 is an apocalyptic number.

77321043 is a deficient number, since it is larger than the sum of its proper divisors (34364921).

77321043 is a wasteful number, since it uses less digits than its factorization.

77321043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591233 (or 8591230 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 77321043 is about 8793.2384819246. The cubic root of 77321043 is about 426.0225307134.

The spelling of 77321043 in words is "seventy-seven million, three hundred twenty-one thousand, forty-three".