679743895 has 12 divisors (see below), whose sum is σ = 866498904. Its totient is φ = 511806080.

The previous prime is 679743809. The next prime is 679743899. The reversal of 679743895 is 598347976.

It is not a de Polignac number, because 679743895 - 2¹¹ = 679741847 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 (679743899) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 233761 + ... + 236650.

It is an arithmetic number, because the mean of its divisors is an integer number (72208242).

Almost surely, 2^679743895 is an apocalyptic number.

679743895 is a deficient number, since it is larger than the sum of its proper divisors (186755009).

679743895 is a wasteful number, since it uses less digits than its factorization.

679743895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470450 (or 470433 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 58.

The square root of 679743895 is about 26071.8985691491. The cubic root of 679743895 is about 879.2555235043.

The spelling of 679743895 in words is "six hundred seventy-nine million, seven hundred forty-three thousand, eight hundred ninety-five".