679089081 has 8 divisors (see below), whose sum is σ = 987765984. Its totient is φ = 411569120.

The previous prime is 679089079. The next prime is 679089101. The reversal of 679089081 is 180980976.

It is a happy number.

679089081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 679089081 - 2¹ = 679089079 is a prime.

It is a super-2 number, since 2×679089081² = 922323959866849122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 679089081.

It is not an unprimeable number, because it can be changed into a prime (679089001) 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, 10289196 + ... + 10289261.

It is an arithmetic number, because the mean of its divisors is an integer number (123470748).

Almost surely, 2^679089081 is an apocalyptic number.

It is an amenable number.

679089081 is a deficient number, since it is larger than the sum of its proper divisors (308676903).

679089081 is a wasteful number, since it uses less digits than its factorization.

679089081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20578471.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 679089081 is about 26059.3376930420. The cubic root of 679089081 is about 878.9730966436.

The spelling of 679089081 in words is "six hundred seventy-nine million, eighty-nine thousand, eighty-one".