672444349 has 2 divisors, whose sum is σ = 672444350. Its totient is φ = 672444348.

The previous prime is 672444347. The next prime is 672444379. The reversal of 672444349 is 943444276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 672105625 + 338724 = 25925^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 672444349 - 2¹ = 672444347 is a prime.

Together with 672444347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672444347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336222174 + 336222175.

It is an arithmetic number, because the mean of its divisors is an integer number (336222175).

Almost surely, 2^672444349 is an apocalyptic number.

It is an amenable number.

672444349 is a deficient number, since it is larger than the sum of its proper divisors (1).

672444349 is an equidigital number, since it uses as much as digits as its factorization.

672444349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 43.

The square root of 672444349 is about 25931.5319447193. The cubic root of 672444349 is about 876.0968444637.

The spelling of 672444349 in words is "six hundred seventy-two million, four hundred forty-four thousand, three hundred forty-nine".