770724813 has 16 divisors (see below), whose sum is σ = 1048401152. Its totient is φ = 503496000.

The previous prime is 770724769. The next prime is 770724841. The reversal of 770724813 is 318427077.

It is not a de Polignac number, because 770724813 - 2⁹ = 770724301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770724853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41823 + ... + 57363.

It is an arithmetic number, because the mean of its divisors is an integer number (65525072).

Almost surely, 2^770724813 is an apocalyptic number.

It is an amenable number.

770724813 is a deficient number, since it is larger than the sum of its proper divisors (277676339).

770724813 is a wasteful number, since it uses less digits than its factorization.

770724813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15876.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 770724813 is about 27761.9310027239. The cubic root of 770724813 is about 916.8531477505.

The spelling of 770724813 in words is "seven hundred seventy million, seven hundred twenty-four thousand, eight hundred thirteen".