806864173 has 4 divisors (see below), whose sum is σ = 841945248. Its totient is φ = 771783100.

The previous prime is 806864167. The next prime is 806864207. The reversal of 806864173 is 371468608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 806864173 - 2²⁵ = 773309741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806864273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17540503 + ... + 17540548.

It is an arithmetic number, because the mean of its divisors is an integer number (210486312).

Almost surely, 2^806864173 is an apocalyptic number.

It is an amenable number.

806864173 is a deficient number, since it is larger than the sum of its proper divisors (35081075).

806864173 is a wasteful number, since it uses less digits than its factorization.

806864173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35081074.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 806864173 is about 28405.3546536564. The cubic root of 806864173 is about 930.9652647924.

The spelling of 806864173 in words is "eight hundred six million, eight hundred sixty-four thousand, one hundred seventy-three".