679497670 has 16 divisors (see below), whose sum is σ = 1225536480. Its totient is φ = 271256704.

The previous prime is 679497641. The next prime is 679497673. The reversal of 679497670 is 76794976.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679497673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62515 + ... + 72574.

It is an arithmetic number, because the mean of its divisors is an integer number (76596030).

Almost surely, 2^679497670 is an apocalyptic number.

679497670 is a deficient number, since it is larger than the sum of its proper divisors (546038810).

679497670 is a wasteful number, since it uses less digits than its factorization.

679497670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135599.

The product of its (nonzero) digits is 4000752, while the sum is 55.

The square root of 679497670 is about 26067.1761032913. The cubic root of 679497670 is about 879.1493458499.

The spelling of 679497670 in words is "six hundred seventy-nine million, four hundred ninety-seven thousand, six hundred seventy".