246646 has 4 divisors (see below), whose sum is σ = 369972. Its totient is φ = 123322.

The previous prime is 246643. The next prime is 246661. The reversal of 246646 is 646642.

246646 = T₄₀₄ + T₄₀₅ + T₄₀₆.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (246641) 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, 61660 + ... + 61663.

It is an arithmetic number, because the mean of its divisors is an integer number (92493).

2²⁴⁶⁶⁴⁶ is an apocalyptic number.

246646 is the 406-th centered triangular number.

246646 is a deficient number, since it is larger than the sum of its proper divisors (123326).

246646 is a wasteful number, since it uses less digits than its factorization.

246646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123325.

The product of its digits is 6912, while the sum is 28.

The square root of 246646 is about 496.6346745849. The cubic root of 246646 is about 62.7130648287.

It can be divided in two parts, 24 and 6646, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 246646 in words is "two hundred forty-six thousand, six hundred forty-six".