86782125 has 16 divisors (see below), whose sum is σ = 144406080. Its totient is φ = 46283600.

The previous prime is 86782103. The next prime is 86782141. The reversal of 86782125 is 52128768.

It is not a de Polignac number, because 86782125 - 2⁷ = 86781997 is a prime.

It is a super-2 number, since 2×86782125² = 15062274439031250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115335 + ... + 116084.

It is an arithmetic number, because the mean of its divisors is an integer number (9025380).

Almost surely, 2^86782125 is an apocalyptic number.

It is an amenable number.

86782125 is a deficient number, since it is larger than the sum of its proper divisors (57623955).

86782125 is a wasteful number, since it uses less digits than its factorization.

86782125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231437 (or 231427 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 86782125 is about 9315.6924058279. The cubic root of 86782125 is about 442.7345623522.

The spelling of 86782125 in words is "eighty-six million, seven hundred eighty-two thousand, one hundred twenty-five".