864417929 has 4 divisors (see below), whose sum is σ = 874130580. Its totient is φ = 854705280.

The previous prime is 864417913. The next prime is 864417941. The reversal of 864417929 is 929714468.

864417929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 218241529 + 646176400 = 14773^2 + 25420^2 .

It is a cyclic number.

It is not a de Polignac number, because 864417929 - 2⁴ = 864417913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864417959) 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, 4856192 + ... + 4856369.

It is an arithmetic number, because the mean of its divisors is an integer number (218532645).

Almost surely, 2^864417929 is an apocalyptic number.

864417929 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

864417929 is a deficient number, since it is larger than the sum of its proper divisors (9712651).

864417929 is an equidigital number, since it uses as much as digits as its factorization.

864417929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9712650.

The product of its digits is 870912, while the sum is 50.

The square root of 864417929 is about 29400.9851705687. The cubic root of 864417929 is about 952.5941760870.

The spelling of 864417929 in words is "eight hundred sixty-four million, four hundred seventeen thousand, nine hundred twenty-nine".