679225 has 12 divisors (see below), whose sum is σ = 853740. Its totient is φ = 536000.

The previous prime is 679223. The next prime is 679229. The reversal of 679225 is 522976.

It can be written as a sum of positive squares in 6 ways, for example, as 8464 + 670761 = 92^2 + 819^2 .

It is not a de Polignac number, because 679225 - 2¹ = 679223 is a prime.

It is a super-2 number, since 2×679225² = 922693201250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679223) 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 11 ways as a sum of consecutive naturals, for example, 2391 + ... + 2659.

It is an arithmetic number, because the mean of its divisors is an integer number (71145).

2⁶⁷⁹²²⁵ is an apocalyptic number.

It is an amenable number.

679225 is a deficient number, since it is larger than the sum of its proper divisors (174515).

679225 is a wasteful number, since it uses less digits than its factorization.

679225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 375 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 679225 is about 824.1510783831. The cubic root of 679225 is about 87.9031734594.

The spelling of 679225 in words is "six hundred seventy-nine thousand, two hundred twenty-five".