670349 has 2 divisors, whose sum is σ = 670350. Its totient is φ = 670348.

The previous prime is 670343. The next prime is 670363. The reversal of 670349 is 943076.

670349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669124 + 1225 = 818^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 670349 - 2⁴ = 670333 is a prime.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670349.

It is not a weakly prime, because it can be changed into another prime (670343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335174 + 335175.

It is an arithmetic number, because the mean of its divisors is an integer number (335175).

2⁶⁷⁰³⁴⁹ is an apocalyptic number.

It is an amenable number.

670349 is a deficient number, since it is larger than the sum of its proper divisors (1).

670349 is an equidigital number, since it uses as much as digits as its factorization.

670349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 670349 is about 818.7484351130. The cubic root of 670349 is about 87.5185919677.

It can be divided in two parts, 67034 and 9, that multiplied together give a palindrome (603306).

The spelling of 670349 in words is "six hundred seventy thousand, three hundred forty-nine".