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864001 = 3147593
BaseRepresentation
bin11010010111100000001
31121220012001
43102330001
5210122001
630304001
710225645
oct3227401
91556161
10864001
11540156
12358001
13243358
14186c25
15121001
hexd2f01

864001 has 8 divisors (see below), whose sum is σ = 912384. Its totient is φ = 816960.

The previous prime is 863983. The next prime is 864007. The reversal of 864001 is 100468.

Adding to 864001 its reverse (100468), we get a palindrome (964469).

It can be divided in two parts, 8 and 64001, that added together give a square (64009 = 2532).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-864001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864001.

It is not an unprimeable number, because it can be changed into a prime (864007) 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, 1161 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (114048).

2864001 is an apocalyptic number.

It is an amenable number.

864001 is a deficient number, since it is larger than the sum of its proper divisors (48383).

864001 is a wasteful number, since it uses less digits than its factorization.

864001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 864001 is about 929.5165410040. The cubic root of 864001 is about 95.2440998635.

The spelling of 864001 in words is "eight hundred sixty-four thousand, one".

Divisors: 1 31 47 593 1457 18383 27871 864001