8464004657 has 2 divisors, whose sum is σ = 8464004658. Its totient is φ = 8464004656.

The previous prime is 8464004611. The next prime is 8464004663. The reversal of 8464004657 is 7564004648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5386972816 + 3077031841 = 73396^2 + 55471^2 .

It is a cyclic number.

It is not a de Polignac number, because 8464004657 - 2²⁰ = 8462956081 is a prime.

It is not a weakly prime, because it can be changed into another prime (8464004677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4232002328 + 4232002329.

It is an arithmetic number, because the mean of its divisors is an integer number (4232002329).

Almost surely, 2^8464004657 is an apocalyptic number.

It is an amenable number.

8464004657 is a deficient number, since it is larger than the sum of its proper divisors (1).

8464004657 is an equidigital number, since it uses as much as digits as its factorization.

8464004657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 8464004657 is about 92000.0253097791. The cubic root of 8464004657 is about 2037.9426792891.

Subtracting from 8464004657 its reverse (7564004648), we obtain a palindrome (900000009).

The spelling of 8464004657 in words is "eight billion, four hundred sixty-four million, four thousand, six hundred fifty-seven".