86704173 has 6 divisors (see below), whose sum is σ = 125239374. Its totient is φ = 57802776.

The previous prime is 86704153. The next prime is 86704243. The reversal of 86704173 is 37140768.

It can be written as a sum of positive squares in only one way, i.e., 52446564 + 34257609 = 7242^2 + 5853^2 .

It is not a de Polignac number, because 86704173 - 2⁵ = 86704141 is a prime.

It is a super-2 number, since 2×86704173² = 15035227231227858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86704103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4816890 + ... + 4816907.

It is an arithmetic number, because the mean of its divisors is an integer number (20873229).

Almost surely, 2^86704173 is an apocalyptic number.

It is an amenable number.

86704173 is a deficient number, since it is larger than the sum of its proper divisors (38535201).

86704173 is a wasteful number, since it uses less digits than its factorization.

86704173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9633803 (or 9633800 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 86704173 is about 9311.5075578555. The cubic root of 86704173 is about 442.6019606087.

The spelling of 86704173 in words is "eighty-six million, seven hundred four thousand, one hundred seventy-three".