864845307 has 24 divisors (see below), whose sum is σ = 1276395120. Its totient is φ = 564157440.

The previous prime is 864845273. The next prime is 864845321. The reversal of 864845307 is 703548468.

It is not a de Polignac number, because 864845307 - 2¹⁹ = 864321019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864845207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72132 + ... + 83262.

It is an arithmetic number, because the mean of its divisors is an integer number (53183130).

Almost surely, 2^864845307 is an apocalyptic number.

864845307 is a deficient number, since it is larger than the sum of its proper divisors (411549813).

864845307 is a wasteful number, since it uses less digits than its factorization.

864845307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323 (or 11320 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 864845307 is about 29408.2523622197. The cubic root of 864845307 is about 952.7511413326.

The spelling of 864845307 in words is "eight hundred sixty-four million, eight hundred forty-five thousand, three hundred seven".