864949071 has 8 divisors (see below), whose sum is σ = 1318017664. Its totient is φ = 494256600.

The previous prime is 864949049. The next prime is 864949093. The reversal of 864949071 is 170949468.

It is an interprime number because it is at equal distance from previous prime (864949049) and next prime (864949093).

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

It is not a de Polignac number, because 864949071 - 2¹⁵ = 864916303 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 864949071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864945071) 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, 20594005 + ... + 20594046.

It is an arithmetic number, because the mean of its divisors is an integer number (164752208).

Almost surely, 2^864949071 is an apocalyptic number.

864949071 is a deficient number, since it is larger than the sum of its proper divisors (453068593).

864949071 is a wasteful number, since it uses less digits than its factorization.

864949071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41188061.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 864949071 is about 29410.0165079858. The cubic root of 864949071 is about 952.7892434514.

The spelling of 864949071 in words is "eight hundred sixty-four million, nine hundred forty-nine thousand, seventy-one".