86042871 has 32 divisors (see below), whose sum is σ = 134027520. Its totient is φ = 54486432.

The previous prime is 86042867. The next prime is 86042911. The reversal of 86042871 is 17824068.

It is not a de Polignac number, because 86042871 - 2² = 86042867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86042851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41956 + ... + 43958.

It is an arithmetic number, because the mean of its divisors is an integer number (4188360).

Almost surely, 2^86042871 is an apocalyptic number.

86042871 is a deficient number, since it is larger than the sum of its proper divisors (47984649).

86042871 is a wasteful number, since it uses less digits than its factorization.

86042871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 86042871 is about 9275.9296569131. The cubic root of 86042871 is about 441.4738301090.

The spelling of 86042871 in words is "eighty-six million, forty-two thousand, eight hundred seventy-one".