672772 has 6 divisors (see below), whose sum is σ = 1177358. Its totient is φ = 336384.

The previous prime is 672767. The next prime is 672779. The reversal of 672772 is 277276.

It can be written as a sum of positive squares in only one way, i.e., 484416 + 188356 = 696^2 + 434^2 .

It is not an unprimeable number, because it can be changed into a prime (672779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84093 + ... + 84100.

2⁶⁷²⁷⁷² is an apocalyptic number.

It is an amenable number.

672772 is a deficient number, since it is larger than the sum of its proper divisors (504586).

672772 is a wasteful number, since it uses less digits than its factorization.

672772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168197 (or 168195 counting only the distinct ones).

The product of its digits is 8232, while the sum is 31.

The square root of 672772 is about 820.2267979041. The cubic root of 672772 is about 87.6239115170.

It can be divided in two parts, 672 and 772, that added together give a square (1444 = 38²).

The spelling of 672772 in words is "six hundred seventy-two thousand, seven hundred seventy-two".