679645043 has 24 divisors (see below), whose sum is σ = 865191600. Its totient is φ = 527929920.

The previous prime is 679645033. The next prime is 679645063. The reversal of 679645043 is 340546976.

It is not a de Polignac number, because 679645043 - 2⁸ = 679644787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 679644985 and 679645003.

It is not an unprimeable number, because it can be changed into a prime (679645033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186305 + ... + 189917.

It is an arithmetic number, because the mean of its divisors is an integer number (36049650).

Almost surely, 2^679645043 is an apocalyptic number.

679645043 is a deficient number, since it is larger than the sum of its proper divisors (185546557).

679645043 is a wasteful number, since it uses less digits than its factorization.

679645043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987 (or 3980 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 679645043 is about 26070.0027426159. The cubic root of 679645043 is about 879.2128994213.

The spelling of 679645043 in words is "six hundred seventy-nine million, six hundred forty-five thousand, forty-three".