76782745 has 16 divisors (see below), whose sum is σ = 99896832. Its totient is φ = 56318400.

The previous prime is 76782721. The next prime is 76782751. The reversal of 76782745 is 54728767.

It is not a de Polignac number, because 76782745 - 2¹³ = 76774553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76782695 and 76782704.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5904 + ... + 13726.

It is an arithmetic number, because the mean of its divisors is an integer number (6243552).

Almost surely, 2^76782745 is an apocalyptic number.

It is an amenable number.

76782745 is a deficient number, since it is larger than the sum of its proper divisors (23114087).

76782745 is a wasteful number, since it uses less digits than its factorization.

76782745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7992.

The product of its digits is 658560, while the sum is 46.

The square root of 76782745 is about 8762.5763905372. The cubic root of 76782745 is about 425.0315916539.

The spelling of 76782745 in words is "seventy-six million, seven hundred eighty-two thousand, seven hundred forty-five".