672906 has 16 divisors (see below), whose sum is σ = 1449504. Its totient is φ = 207024.

The previous prime is 672901. The next prime is 672913. The reversal of 672906 is 609276.

It is a d-powerful number, because it can be written as 6³ + 7⁴ + 9⁶ + 2¹⁷ + 0 + 6⁵ .

It is not an unprimeable number, because it can be changed into a prime (672901) by changing a digit.

672906 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 7 ways as a sum of consecutive naturals, for example, 4236 + ... + 4391.

It is an arithmetic number, because the mean of its divisors is an integer number (90594).

2⁶⁷²⁹⁰⁶ is an apocalyptic number.

672906 is an abundant number, since it is smaller than the sum of its proper divisors (776598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672906 is a wasteful number, since it uses less digits than its factorization.

672906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8645.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 672906 is about 820.3084785616. The cubic root of 672906 is about 87.6297286560.

The spelling of 672906 in words is "six hundred seventy-two thousand, nine hundred six".