445270717 has 2 divisors, whose sum is σ = 445270718. Its totient is φ = 445270716.

The previous prime is 445270711. The next prime is 445270729. The reversal of 445270717 is 717072544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385965316 + 59305401 = 19646^2 + 7701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445270717 is a prime.

It is a super-2 number, since 2×445270717² = 396532022835388178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445270711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222635358 + 222635359.

It is an arithmetic number, because the mean of its divisors is an integer number (222635359).

Almost surely, 2^445270717 is an apocalyptic number.

It is an amenable number.

445270717 is a deficient number, since it is larger than the sum of its proper divisors (1).

445270717 is an equidigital number, since it uses as much as digits as its factorization.

445270717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 445270717 is about 21101.4387424175. The cubic root of 445270717 is about 763.6154585800.

The spelling of 445270717 in words is "four hundred forty-five million, two hundred seventy thousand, seven hundred seventeen".