672278 has 16 divisors (see below), whose sum is σ = 1064880. Its totient is φ = 317856.

The previous prime is 672271. The next prime is 672283. The reversal of 672278 is 872276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672271) by changing a digit.

672278 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, 3800 + ... + 3972.

It is an arithmetic number, because the mean of its divisors is an integer number (66555).

2⁶⁷²²⁷⁸ is an apocalyptic number.

672278 is a deficient number, since it is larger than the sum of its proper divisors (392602).

672278 is a wasteful number, since it uses less digits than its factorization.

672278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271.

The product of its digits is 9408, while the sum is 32.

The square root of 672278 is about 819.9256063815. The cubic root of 672278 is about 87.6024595683.

The spelling of 672278 in words is "six hundred seventy-two thousand, two hundred seventy-eight".