445905697 has 2 divisors, whose sum is σ = 445905698. Its totient is φ = 445905696.

The previous prime is 445905673. The next prime is 445905721. The reversal of 445905697 is 796509544.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (445905673) and next prime (445905721).

It can be written as a sum of positive squares in only one way, i.e., 409617121 + 36288576 = 20239^2 + 6024^2 .

It is a cyclic number.

It is not a de Polignac number, because 445905697 - 2¹¹ = 445903649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445905697.

It is not a weakly prime, because it can be changed into another prime (445903697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222952848 + 222952849.

It is an arithmetic number, because the mean of its divisors is an integer number (222952849).

Almost surely, 2^445905697 is an apocalyptic number.

It is an amenable number.

445905697 is a deficient number, since it is larger than the sum of its proper divisors (1).

445905697 is an equidigital number, since it uses as much as digits as its factorization.

445905697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 445905697 is about 21116.4792756747. The cubic root of 445905697 is about 763.9782717476.

The spelling of 445905697 in words is "four hundred forty-five million, nine hundred five thousand, six hundred ninety-seven".