864607 has 4 divisors (see below), whose sum is σ = 871056. Its totient is φ = 858160.

The previous prime is 864587. The next prime is 864613. The reversal of 864607 is 706468.

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

It is a cyclic number.

It is not a de Polignac number, because 864607 - 2¹¹ = 862559 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 (864007) 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, 3019 + ... + 3292.

It is an arithmetic number, because the mean of its divisors is an integer number (217764).

2⁸⁶⁴⁶⁰⁷ is an apocalyptic number.

864607 is a deficient number, since it is larger than the sum of its proper divisors (6449).

864607 is a wasteful number, since it uses less digits than its factorization.

864607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 864607 is about 929.8424597748. The cubic root of 864607 is about 95.2663623514.

The spelling of 864607 in words is "eight hundred sixty-four thousand, six hundred seven".