864539701 has 4 divisors (see below), whose sum is σ = 866653900. Its totient is φ = 862425504.

The previous prime is 864539693. The next prime is 864539707. The reversal of 864539701 is 107935468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 351562500 + 512977201 = 18750^2 + 22649^2 .

It is a cyclic number.

It is not a de Polignac number, because 864539701 - 2³ = 864539693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864539707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056486 + ... + 1057303.

It is an arithmetic number, because the mean of its divisors is an integer number (216663475).

Almost surely, 2^864539701 is an apocalyptic number.

It is an amenable number.

864539701 is a deficient number, since it is larger than the sum of its proper divisors (2114199).

864539701 is a wasteful number, since it uses less digits than its factorization.

864539701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114198.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 864539701 is about 29403.0559806290. The cubic root of 864539701 is about 952.6389051652.

The spelling of 864539701 in words is "eight hundred sixty-four million, five hundred thirty-nine thousand, seven hundred one".