445627213 has 2 divisors, whose sum is σ = 445627214. Its totient is φ = 445627212.

The previous prime is 445627187. The next prime is 445627219. The reversal of 445627213 is 312726544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229007689 + 216619524 = 15133^2 + 14718^2 .

It is a cyclic number.

It is not a de Polignac number, because 445627213 - 2¹³ = 445619021 is a prime.

It is a super-2 number, since 2×445627213² = 397167225932294738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445627219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222813606 + 222813607.

It is an arithmetic number, because the mean of its divisors is an integer number (222813607).

Almost surely, 2^445627213 is an apocalyptic number.

It is an amenable number.

445627213 is a deficient number, since it is larger than the sum of its proper divisors (1).

445627213 is an equidigital number, since it uses as much as digits as its factorization.

445627213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 445627213 is about 21109.8842488537. The cubic root of 445627213 is about 763.8191947402.

The spelling of 445627213 in words is "four hundred forty-five million, six hundred twenty-seven thousand, two hundred thirteen".