864146 has 4 divisors (see below), whose sum is σ = 1296222. Its totient is φ = 432072.

The previous prime is 864137. The next prime is 864151. The reversal of 864146 is 641468.

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., 829921 + 34225 = 911^2 + 185^2 .

It is an unprimeable number.

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, 216035 + ... + 216038.

2⁸⁶⁴¹⁴⁶ is an apocalyptic number.

864146 is a deficient number, since it is larger than the sum of its proper divisors (432076).

864146 is a wasteful number, since it uses less digits than its factorization.

864146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432075.

The product of its digits is 4608, while the sum is 29.

The square root of 864146 is about 929.5945352679. The cubic root of 864146 is about 95.2494276436.

The spelling of 864146 in words is "eight hundred sixty-four thousand, one hundred forty-six".