864074 has 4 divisors (see below), whose sum is σ = 1296114. Its totient is φ = 432036.

The previous prime is 864053. The next prime is 864077. The reversal of 864074 is 470468.

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

It can be written as a sum of positive squares in only one way, i.e., 628849 + 235225 = 793^2 + 485^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (864077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216017 + ... + 216020.

2⁸⁶⁴⁰⁷⁴ is an apocalyptic number.

864074 is a deficient number, since it is larger than the sum of its proper divisors (432040).

864074 is a wasteful number, since it uses less digits than its factorization.

864074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432039.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 864074 is about 929.5558078997. Note that the first 3 decimals coincide. The cubic root of 864074 is about 95.2467821997.

The spelling of 864074 in words is "eight hundred sixty-four thousand, seventy-four".