864124447 has 8 divisors (see below), whose sum is σ = 876830544. Its totient is φ = 851507328.

The previous prime is 864124439. The next prime is 864124483. The reversal of 864124447 is 744421468.

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 864124447 - 2³ = 864124439 is a prime.

It is a super-2 number, since 2×864124447² = 1493422119806111618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864122447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2553 + ... + 41650.

It is an arithmetic number, because the mean of its divisors is an integer number (109603818).

Almost surely, 2^864124447 is an apocalyptic number.

864124447 is a deficient number, since it is larger than the sum of its proper divisors (12706097).

864124447 is a wasteful number, since it uses less digits than its factorization.

864124447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44489.

The product of its digits is 172032, while the sum is 40.

The square root of 864124447 is about 29395.9937236352. The cubic root of 864124447 is about 952.4863575269.

The spelling of 864124447 in words is "eight hundred sixty-four million, one hundred twenty-four thousand, four hundred forty-seven".