864001441 has 4 divisors (see below), whose sum is σ = 864068800. Its totient is φ = 863934084.

The previous prime is 864001349. The next prime is 864001469. The reversal of 864001441 is 144100468.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 864001441 - 2¹⁵ = 863968673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864008441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7821 + ... + 42298.

It is an arithmetic number, because the mean of its divisors is an integer number (216017200).

Almost surely, 2^864001441 is an apocalyptic number.

It is an amenable number.

864001441 is a deficient number, since it is larger than the sum of its proper divisors (67359).

864001441 is a wasteful number, since it uses less digits than its factorization.

864001441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67358.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 864001441 is about 29393.9014252957. The cubic root of 864001441 is about 952.4411606818.

The spelling of 864001441 in words is "eight hundred sixty-four million, one thousand, four hundred forty-one".