670454443 has 2 divisors, whose sum is σ = 670454444. Its totient is φ = 670454442.

The previous prime is 670454441. The next prime is 670454489. The reversal of 670454443 is 344454076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670454443 - 2¹ = 670454441 is a prime.

Together with 670454441, it forms a pair of twin primes.

It is equal to p_34800787 and since 670454443 and 34800787 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (670454441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335227221 + 335227222.

It is an arithmetic number, because the mean of its divisors is an integer number (335227222).

Almost surely, 2^670454443 is an apocalyptic number.

670454443 is a deficient number, since it is larger than the sum of its proper divisors (1).

670454443 is an equidigital number, since it uses as much as digits as its factorization.

670454443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 37.

The square root of 670454443 is about 25893.1350554544. The cubic root of 670454443 is about 875.2318049250.

The spelling of 670454443 in words is "six hundred seventy million, four hundred fifty-four thousand, four hundred forty-three".