672949 has 2 divisors, whose sum is σ = 672950. Its totient is φ = 672948.

The previous prime is 672943. The next prime is 672953. The reversal of 672949 is 949276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 44100 = 793^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 672949 - 2¹³ = 664757 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336474 + 336475.

It is an arithmetic number, because the mean of its divisors is an integer number (336475).

2⁶⁷²⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

672949 is a deficient number, since it is larger than the sum of its proper divisors (1).

672949 is an equidigital number, since it uses as much as digits as its factorization.

672949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 672949 is about 820.3346877952. The cubic root of 672949 is about 87.6315951861.

The spelling of 672949 in words is "six hundred seventy-two thousand, nine hundred forty-nine".