864497 has 8 divisors (see below), whose sum is σ = 906240. Its totient is φ = 823680.

The previous prime is 864491. The next prime is 864503. The reversal of 864497 is 794468.

It is a happy number.

864497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

864497 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (864491) and next prime (864503).

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

It is a cyclic number.

It is not a de Polignac number, because 864497 - 2¹⁶ = 798961 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 864497.

It is not an unprimeable number, because it can be changed into a prime (864491) 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, 2273 + ... + 2625.

It is an arithmetic number, because the mean of its divisors is an integer number (113280).

2⁸⁶⁴⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

864497 is a deficient number, since it is larger than the sum of its proper divisors (41743).

864497 is a wasteful number, since it uses less digits than its factorization.

864497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463.

The product of its digits is 48384, while the sum is 38.

The square root of 864497 is about 929.7833080885. The cubic root of 864497 is about 95.2623220787.

The spelling of 864497 in words is "eight hundred sixty-four thousand, four hundred ninety-seven".