8564312497 has 8 divisors (see below), whose sum is σ = 9223943400. Its totient is φ = 7904801280.

The previous prime is 8564312489. The next prime is 8564312503. The reversal of 8564312497 is 7942134658.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2610801216 + 5953511281 = 51096^2 + 77159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8564312497 - 2³ = 8564312489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8564312497.

It is not an unprimeable number, because it can be changed into a prime (8564312467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166497 + ... + 211777.

It is an arithmetic number, because the mean of its divisors is an integer number (1152992925).

Almost surely, 2^8564312497 is an apocalyptic number.

It is an amenable number.

8564312497 is a deficient number, since it is larger than the sum of its proper divisors (659630903).

8564312497 is a wasteful number, since it uses less digits than its factorization.

8564312497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59843.

The product of its digits is 1451520, while the sum is 49.

The square root of 8564312497 is about 92543.5708031628. The cubic root of 8564312497 is about 2045.9617108876.

The spelling of 8564312497 in words is "eight billion, five hundred sixty-four million, three hundred twelve thousand, four hundred ninety-seven".