77683845 has 8 divisors (see below), whose sum is σ = 124294176. Its totient is φ = 41431376.

The previous prime is 77683817. The next prime is 77683873. The reversal of 77683845 is 54838677.

It is an interprime number because it is at equal distance from previous prime (77683817) and next prime (77683873).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77683845 - 2¹⁰ = 77682821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77683794 and 77683803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2589447 + ... + 2589476.

It is an arithmetic number, because the mean of its divisors is an integer number (15536772).

Almost surely, 2^77683845 is an apocalyptic number.

It is an amenable number.

77683845 is a deficient number, since it is larger than the sum of its proper divisors (46610331).

77683845 is a wasteful number, since it uses less digits than its factorization.

77683845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178931.

The product of its digits is 1128960, while the sum is 48.

The square root of 77683845 is about 8813.8439400752. The cubic root of 77683845 is about 426.6878119268.

The spelling of 77683845 in words is "seventy-seven million, six hundred eighty-three thousand, eight hundred forty-five".