1672267213 has 2 divisors, whose sum is σ = 1672267214. Its totient is φ = 1672267212.

The previous prime is 1672267211. The next prime is 1672267229. The reversal of 1672267213 is 3127622761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1659177289 + 13089924 = 40733^2 + 3618^2 .

It is an emirp because it is prime and its reverse (3127622761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672267213 - 2¹ = 1672267211 is a prime.

Together with 1672267211, 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 (1672267211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836133606 + 836133607.

It is an arithmetic number, because the mean of its divisors is an integer number (836133607).

Almost surely, 2^1672267213 is an apocalyptic number.

It is an amenable number.

1672267213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672267213 is an equidigital number, since it uses as much as digits as its factorization.

1672267213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 1672267213 is about 40893.3639237468. The cubic root of 1672267213 is about 1186.9576531053.

Adding to 1672267213 its reverse (3127622761), we get a palindrome (4799889974).

The spelling of 1672267213 in words is "one billion, six hundred seventy-two million, two hundred sixty-seven thousand, two hundred thirteen".