672722 has 4 divisors (see below), whose sum is σ = 1009086. Its totient is φ = 336360.

The previous prime is 672703. The next prime is 672743. The reversal of 672722 is 227276.

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

It can be written as a sum of positive squares in only one way, i.e., 519841 + 152881 = 721^2 + 391^2 .

It is a super-3 number, since 3×672722³ = 913330890686733144, which contains 333 as substring.

It is a d-powerful number, because it can be written as 6² + 7 + 7⁵ + 2⁹ + 2¹⁷ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 672691 and 672700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168179 + ... + 168182.

2⁶⁷²⁷²² is an apocalyptic number.

672722 is a deficient number, since it is larger than the sum of its proper divisors (336364).

672722 is a wasteful number, since it uses less digits than its factorization.

672722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336363.

The product of its digits is 2352, while the sum is 26.

The square root of 672722 is about 820.1963179630. The cubic root of 672722 is about 87.6217407449.

Adding to 672722 its reverse (227276), we get a palindrome (899998).

The spelling of 672722 in words is "six hundred seventy-two thousand, seven hundred twenty-two".