864061 has 12 divisors (see below), whose sum is σ = 980476. Its totient is φ = 760320.

The previous prime is 864053. The next prime is 864077. The reversal of 864061 is 160468.

It can be written as a sum of positive squares in 2 ways, for example, as 511225 + 352836 = 715^2 + 594^2 .

It is not a de Polignac number, because 864061 - 2³ = 864053 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4381 + ... + 4573.

2⁸⁶⁴⁰⁶¹ is an apocalyptic number.

It is an amenable number.

864061 is a deficient number, since it is larger than the sum of its proper divisors (116415).

864061 is a wasteful number, since it uses less digits than its factorization.

864061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 864061 is about 929.5488152862. The cubic root of 864061 is about 95.2463045344.

The spelling of 864061 in words is "eight hundred sixty-four thousand, sixty-one".