679667290 has 8 divisors (see below), whose sum is σ = 1223401140. Its totient is φ = 271866912.

The previous prime is 679667269. The next prime is 679667299. The reversal of 679667290 is 92766976.

It can be written as a sum of positive squares in 2 ways, for example, as 679592761 + 74529 = 26069^2 + 273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (679667299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33983355 + ... + 33983374.

Almost surely, 2^679667290 is an apocalyptic number.

679667290 is a deficient number, since it is larger than the sum of its proper divisors (543733850).

679667290 is a wasteful number, since it uses less digits than its factorization.

679667290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67966736.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 679667290 is about 26070.4294172536. The cubic root of 679667290 is about 879.2224924857. Note that the first 3 decimals are identical.

The spelling of 679667290 in words is "six hundred seventy-nine million, six hundred sixty-seven thousand, two hundred ninety".