667025 has 6 divisors (see below), whose sum is σ = 827142. Its totient is φ = 533600.

The previous prime is 667021. The next prime is 667081. The reversal of 667025 is 520766.

It can be written as a sum of positive squares in 3 ways, for example, as 12544 + 654481 = 112^2 + 809^2 .

It is not a de Polignac number, because 667025 - 2² = 667021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 666985 and 667003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13316 + ... + 13365.

It is an arithmetic number, because the mean of its divisors is an integer number (137857).

2⁶⁶⁷⁰²⁵ is an apocalyptic number.

It is an amenable number.

667025 is a deficient number, since it is larger than the sum of its proper divisors (160117).

667025 is a wasteful number, since it uses less digits than its factorization.

667025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26691 (or 26686 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 667025 is about 816.7159849054. The cubic root of 667025 is about 87.3736953202.

The spelling of 667025 in words is "six hundred sixty-seven thousand, twenty-five".