8280007 has 4 divisors (see below), whose sum is σ = 8547136. Its totient is φ = 8012880.

The previous prime is 8279987. The next prime is 8280011. The reversal of 8280007 is 7000828.

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

It is a de Polignac number, because none of the positive numbers 2^k-8280007 is a prime.

It is the 2878-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280047) by changing a digit.

It is a nontrivial repunit in base 2877.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133518 + ... + 133579.

It is an arithmetic number, because the mean of its divisors is an integer number (2136784).

Almost surely, 2^8280007 is an apocalyptic number.

8280007 is a deficient number, since it is larger than the sum of its proper divisors (267129).

8280007 is a wasteful number, since it uses less digits than its factorization.

8280007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267128.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 8280007 is about 2877.5001303215. The cubic root of 8280007 is about 202.3066854006.

It can be divided in two parts, 82 and 80007, that added together give a square (80089 = 283²).

The spelling of 8280007 in words is "eight million, two hundred eighty thousand, seven".