672085 has 4 divisors (see below), whose sum is σ = 806508. Its totient is φ = 537664.

The previous prime is 672079. The next prime is 672097. The reversal of 672085 is 580276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 432964 + 239121 = 658^2 + 489^2 .

It is a cyclic number.

It is not a de Polignac number, because 672085 - 2¹¹ = 670037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67204 + ... + 67213.

It is an arithmetic number, because the mean of its divisors is an integer number (201627).

2⁶⁷²⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

672085 is a deficient number, since it is larger than the sum of its proper divisors (134423).

672085 is a wasteful number, since it uses less digits than its factorization.

672085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134422.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 672085 is about 819.8079043288. The cubic root of 672085 is about 87.5940756890.

Subtracting from 672085 its reverse (580276), we obtain a square (91809 = 303²).

The spelling of 672085 in words is "six hundred seventy-two thousand, eighty-five".