864165047 has 8 divisors (see below), whose sum is σ = 870114336. Its totient is φ = 858225312.

The previous prime is 864165037. The next prime is 864165061. The reversal of 864165047 is 740561468.

864165047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 864165047 - 2²² = 859970743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 864164995 and 864165013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864165017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321473 + ... + 324149.

It is an arithmetic number, because the mean of its divisors is an integer number (108764292).

Almost surely, 2^864165047 is an apocalyptic number.

864165047 is a deficient number, since it is larger than the sum of its proper divisors (5949289).

864165047 is a wasteful number, since it uses less digits than its factorization.

864165047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 864165047 is about 29396.6842858170. The cubic root of 864165047 is about 952.5012744912.

The spelling of 864165047 in words is "eight hundred sixty-four million, one hundred sixty-five thousand, forty-seven".