8260001287 has 4 divisors (see below), whose sum is σ = 8291408400. Its totient is φ = 8228594176.

The previous prime is 8260001273. The next prime is 8260001303. The reversal of 8260001287 is 7821000628.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8260001287 is a prime.

It is a super-2 number, since 2×8260001287² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8260001207) 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, 15703162 + ... + 15703687.

It is an arithmetic number, because the mean of its divisors is an integer number (2072852100).

Almost surely, 2^8260001287 is an apocalyptic number.

8260001287 is a deficient number, since it is larger than the sum of its proper divisors (31407113).

8260001287 is a wasteful number, since it uses less digits than its factorization.

8260001287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31407112.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 8260001287 is about 90884.5492204258. The cubic root of 8260001287 is about 2021.4361977824.

The spelling of 8260001287 in words is "eight billion, two hundred sixty million, one thousand, two hundred eighty-seven".