946672213 has 2 divisors, whose sum is σ = 946672214. Its totient is φ = 946672212.

The previous prime is 946672171. The next prime is 946672231. The reversal of 946672213 is 312276649.

It is a happy number.

Together with next prime (946672231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 637158564 + 309513649 = 25242^2 + 17593^2 .

It is a cyclic number.

It is not a de Polignac number, because 946672213 - 2⁹ = 946671701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (946672613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473336106 + 473336107.

It is an arithmetic number, because the mean of its divisors is an integer number (473336107).

Almost surely, 2^946672213 is an apocalyptic number.

It is an amenable number.

946672213 is a deficient number, since it is larger than the sum of its proper divisors (1).

946672213 is an equidigital number, since it uses as much as digits as its factorization.

946672213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 946672213 is about 30768.0388227784. The cubic root of 946672213 is about 981.8983794446.

The spelling of 946672213 in words is "nine hundred forty-six million, six hundred seventy-two thousand, two hundred thirteen".