679707053 has 4 divisors (see below), whose sum is σ = 680261340. Its totient is φ = 679152768.

The previous prime is 679707029. The next prime is 679707071. The reversal of 679707053 is 350707976.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 608016964 + 71690089 = 24658^2 + 8467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-679707053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 679706995 and 679707013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679707253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275300 + ... + 277757.

It is an arithmetic number, because the mean of its divisors is an integer number (170065335).

Almost surely, 2^679707053 is an apocalyptic number.

It is an amenable number.

679707053 is a deficient number, since it is larger than the sum of its proper divisors (554287).

679707053 is a wasteful number, since it uses less digits than its factorization.

679707053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554286.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 679707053 is about 26071.1920134082. The cubic root of 679707053 is about 879.2396380522.

The spelling of 679707053 in words is "six hundred seventy-nine million, seven hundred seven thousand, fifty-three".