86470191 has 12 divisors (see below), whose sum is σ = 128930880. Its totient is φ = 55787040.

The previous prime is 86470157. The next prime is 86470201. The reversal of 86470191 is 19107468.

86470191 is a `hidden beast` number, since 8 + 647 + 0 + 1 + 9 + 1 = 666.

It is not a de Polignac number, because 86470191 - 2⁷ = 86470063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86470091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154686 + ... + 155243.

It is an arithmetic number, because the mean of its divisors is an integer number (10744240).

Almost surely, 2^86470191 is an apocalyptic number.

86470191 is a deficient number, since it is larger than the sum of its proper divisors (42460689).

86470191 is a wasteful number, since it uses less digits than its factorization.

86470191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309966 (or 309963 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 86470191 is about 9298.9349390132. The cubic root of 86470191 is about 442.2034631062.

The spelling of 86470191 in words is "eighty-six million, four hundred seventy thousand, one hundred ninety-one".