86170234 has 4 divisors (see below), whose sum is σ = 129255354. Its totient is φ = 43085116.

The previous prime is 86170207. The next prime is 86170243. The reversal of 86170234 is 43207168.

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

It can be written as a sum of positive squares in only one way, i.e., 66341025 + 19829209 = 8145^2 + 4453^2 .

It is a super-2 number, since 2×86170234² = 14850618455229512, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 86170196 and 86170205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21542557 + ... + 21542560.

Almost surely, 2^86170234 is an apocalyptic number.

86170234 is a deficient number, since it is larger than the sum of its proper divisors (43085120).

86170234 is a wasteful number, since it uses less digits than its factorization.

86170234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43085119.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 86170234 is about 9282.7923600606. The cubic root of 86170234 is about 441.6915499133.

The spelling of 86170234 in words is "eighty-six million, one hundred seventy thousand, two hundred thirty-four".