649267 has 4 divisors (see below), whose sum is σ = 677520. Its totient is φ = 621016.

The previous prime is 649261. The next prime is 649273. The reversal of 649267 is 762946.

649267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (649261) and next prime (649273).

It is a cyclic number.

It is not a de Polignac number, because 649267 - 2¹¹ = 647219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14092 + ... + 14137.

It is an arithmetic number, because the mean of its divisors is an integer number (169380).

2⁶⁴⁹²⁶⁷ is an apocalyptic number.

649267 is a deficient number, since it is larger than the sum of its proper divisors (28253).

649267 is a wasteful number, since it uses less digits than its factorization.

649267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28252.

The product of its digits is 18144, while the sum is 34.

The square root of 649267 is about 805.7710592966. The cubic root of 649267 is about 86.5913365807.

The spelling of 649267 in words is "six hundred forty-nine thousand, two hundred sixty-seven".