8130872 has 8 divisors (see below), whose sum is σ = 15245400. Its totient is φ = 4065432.

The previous prime is 8130869. The next prime is 8130877. The reversal of 8130872 is 2780318.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8130872² = 132222158960768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8130877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508172 + ... + 508187.

It is an arithmetic number, because the mean of its divisors is an integer number (1905675).

Almost surely, 2^8130872 is an apocalyptic number.

It is an amenable number.

8130872 is a deficient number, since it is larger than the sum of its proper divisors (7114528).

8130872 is a wasteful number, since it uses less digits than its factorization.

8130872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016365 (or 1016361 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 8130872 is about 2851.4683936526. The cubic root of 8130872 is about 201.0847064244.

The spelling of 8130872 in words is "eight million, one hundred thirty thousand, eight hundred seventy-two".