445015897 has 2 divisors, whose sum is σ = 445015898. Its totient is φ = 445015896.

The previous prime is 445015877. The next prime is 445015913. The reversal of 445015897 is 798510544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436141456 + 8874441 = 20884^2 + 2979^2 .

It is a cyclic number.

It is not a de Polignac number, because 445015897 - 2¹⁵ = 444983129 is a prime.

It is not a weakly prime, because it can be changed into another prime (445015807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222507948 + 222507949.

It is an arithmetic number, because the mean of its divisors is an integer number (222507949).

Almost surely, 2^445015897 is an apocalyptic number.

It is an amenable number.

445015897 is a deficient number, since it is larger than the sum of its proper divisors (1).

445015897 is an equidigital number, since it uses as much as digits as its factorization.

445015897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 445015897 is about 21095.3999014003. The cubic root of 445015897 is about 763.4697632277.

The spelling of 445015897 in words is "four hundred forty-five million, fifteen thousand, eight hundred ninety-seven".