672518 has 24 divisors (see below), whose sum is σ = 1270416. Its totient is φ = 261360.

The previous prime is 672499. The next prime is 672521. The reversal of 672518 is 815276.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

672518 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1496 + ... + 1892.

It is an arithmetic number, because the mean of its divisors is an integer number (52934).

2⁶⁷²⁵¹⁸ is an apocalyptic number.

672518 is a deficient number, since it is larger than the sum of its proper divisors (597898).

672518 is a wasteful number, since it uses less digits than its factorization.

672518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 417 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 672518 is about 820.0719480631. The cubic root of 672518 is about 87.6128828797.

The spelling of 672518 in words is "six hundred seventy-two thousand, five hundred eighteen".