8317901261 has 4 divisors (see below), whose sum is σ = 8324759772. Its totient is φ = 8311042752.

The previous prime is 8317901239. The next prime is 8317901297. The reversal of 8317901261 is 1621097138.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 506700100 + 7811201161 = 22510^2 + 88381^2 .

It is a cyclic number.

It is not a de Polignac number, because 8317901261 - 2⁶ = 8317901197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8317901161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3427436 + ... + 3429861.

It is an arithmetic number, because the mean of its divisors is an integer number (2081189943).

Almost surely, 2^8317901261 is an apocalyptic number.

It is an amenable number.

8317901261 is a deficient number, since it is larger than the sum of its proper divisors (6858511).

8317901261 is a wasteful number, since it uses less digits than its factorization.

8317901261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6858510.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 8317901261 is about 91202.5288081422. The cubic root of 8317901261 is about 2026.1484121298.

Adding to 8317901261 its reverse (1621097138), we get a palindrome (9938998399).

The spelling of 8317901261 in words is "eight billion, three hundred seventeen million, nine hundred one thousand, two hundred sixty-one".