860215447 has 8 divisors (see below), whose sum is σ = 1058726816. Its totient is φ = 680609952.

The previous prime is 860215423. The next prime is 860215459. The reversal of 860215447 is 744512068.

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 2^k-860215447 is a prime.

It is a super-3 number, since 3×860215447³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860245447) 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, 4726368 + ... + 4726549.

It is an arithmetic number, because the mean of its divisors is an integer number (132340852).

Almost surely, 2^860215447 is an apocalyptic number.

860215447 is a deficient number, since it is larger than the sum of its proper divisors (198511369).

860215447 is a wasteful number, since it uses less digits than its factorization.

860215447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452937.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 860215447 is about 29329.4297080594. The cubic root of 860215447 is about 951.0479468146.

The spelling of 860215447 in words is "eight hundred sixty million, two hundred fifteen thousand, four hundred forty-seven".