679281 has 4 divisors (see below), whose sum is σ = 905712. Its totient is φ = 452852.

The previous prime is 679279. The next prime is 679297. The reversal of 679281 is 182976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 679281 - 2¹ = 679279 is a prime.

It is a super-2 number, since 2×679281² = 922845353922, which contains 22 as substring.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679281.

It is not an unprimeable number, because it can be changed into a prime (679381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113211 + ... + 113216.

It is an arithmetic number, because the mean of its divisors is an integer number (226428).

2⁶⁷⁹²⁸¹ is an apocalyptic number.

It is an amenable number.

679281 is a deficient number, since it is larger than the sum of its proper divisors (226431).

679281 is a wasteful number, since it uses less digits than its factorization.

679281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226430.

The product of its digits is 6048, while the sum is 33.

The square root of 679281 is about 824.1850520363. The cubic root of 679281 is about 87.9055891745.

The spelling of 679281 in words is "six hundred seventy-nine thousand, two hundred eighty-one".