864824349 has 16 divisors (see below), whose sum is σ = 1219904000. Its totient is φ = 543452976.

The previous prime is 864824339. The next prime is 864824351. The reversal of 864824349 is 943428468.

It is not a de Polignac number, because 864824349 - 2²⁴ = 848047133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 864824298 and 864824307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864824309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26779 + ... + 49464.

It is an arithmetic number, because the mean of its divisors is an integer number (76244000).

Almost surely, 2^864824349 is an apocalyptic number.

It is an amenable number.

864824349 is a deficient number, since it is larger than the sum of its proper divisors (355079651).

864824349 is a wasteful number, since it uses less digits than its factorization.

864824349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76464.

The product of its digits is 1327104, while the sum is 48.

The square root of 864824349 is about 29407.8960315083. The cubic root of 864824349 is about 952.7434451895.

The spelling of 864824349 in words is "eight hundred sixty-four million, eight hundred twenty-four thousand, three hundred forty-nine".