8649469597 has 2 divisors, whose sum is σ = 8649469598. Its totient is φ = 8649469596.

The previous prime is 8649469583. The next prime is 8649469607. The reversal of 8649469597 is 7959649468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4346896761 + 4302572836 = 65931^2 + 65594^2 .

It is a cyclic number.

It is not a de Polignac number, because 8649469597 - 2⁷ = 8649469469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8649469537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4324734798 + 4324734799.

It is an arithmetic number, because the mean of its divisors is an integer number (4324734799).

Almost surely, 2^8649469597 is an apocalyptic number.

It is an amenable number.

8649469597 is a deficient number, since it is larger than the sum of its proper divisors (1).

8649469597 is an equidigital number, since it uses as much as digits as its factorization.

8649469597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 67.

The square root of 8649469597 is about 93002.5246807849. The cubic root of 8649469597 is about 2052.7205281802.

The spelling of 8649469597 in words is "eight billion, six hundred forty-nine million, four hundred sixty-nine thousand, five hundred ninety-seven".