246649 has 4 divisors (see below), whose sum is σ = 265636. Its totient is φ = 227664.

The previous prime is 246643. The next prime is 246661. The reversal of 246649 is 946642.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946642 = 2 ⋅473321.

It can be written as a sum of positive squares in 2 ways, for example, as 60025 + 186624 = 245^2 + 432^2 .

It is a cyclic number.

It is not a de Polignac number, because 246649 - 2³ = 246641 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 246649.

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 in 3 ways as a sum of consecutive naturals, for example, 9474 + ... + 9499.

It is an arithmetic number, because the mean of its divisors is an integer number (66409).

2²⁴⁶⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

246649 is a deficient number, since it is larger than the sum of its proper divisors (18987).

246649 is a wasteful number, since it uses less digits than its factorization.

246649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18986.

The product of its digits is 10368, while the sum is 31.

The square root of 246649 is about 496.6376949044. The cubic root of 246649 is about 62.7133190911.

The spelling of 246649 in words is "two hundred forty-six thousand, six hundred forty-nine".