8450965997 has 2 divisors, whose sum is σ = 8450965998. Its totient is φ = 8450965996.

The previous prime is 8450965993. The next prime is 8450966039. The reversal of 8450965997 is 7995690548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8425220521 + 25745476 = 91789^2 + 5074^2 .

It is a cyclic number.

It is not a de Polignac number, because 8450965997 - 2² = 8450965993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8450965993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4225482998 + 4225482999.

It is an arithmetic number, because the mean of its divisors is an integer number (4225482999).

Almost surely, 2^8450965997 is an apocalyptic number.

It is an amenable number.

8450965997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8450965997 is an equidigital number, since it uses as much as digits as its factorization.

8450965997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 62.

The square root of 8450965997 is about 91929.1357350867. The cubic root of 8450965997 is about 2036.8956690751.

The spelling of 8450965997 in words is "eight billion, four hundred fifty million, nine hundred sixty-five thousand, nine hundred ninety-seven".