679071852 has 18 divisors (see below), whose sum is σ = 1716542828. Its totient is φ = 226357272.

The previous prime is 679071829. The next prime is 679071857. The reversal of 679071852 is 258170976.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×679071852² = 922277160357419808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679071798 and 679071807.

It is not an unprimeable number, because it can be changed into a prime (679071857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9431518 + ... + 9431589.

Almost surely, 2^679071852 is an apocalyptic number.

It is an amenable number.

679071852 is an abundant number, since it is smaller than the sum of its proper divisors (1037470976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679071852 is a wasteful number, since it uses less digits than its factorization.

679071852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18863117 (or 18863112 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 679071852 is about 26059.0071184610. The cubic root of 679071852 is about 878.9656631782.

The spelling of 679071852 in words is "six hundred seventy-nine million, seventy-one thousand, eight hundred fifty-two".