649269 has 16 divisors (see below), whose sum is σ = 974400. Its totient is φ = 427248.

The previous prime is 649261. The next prime is 649273. The reversal of 649269 is 962946.

649269 is a `hidden beast` number, since 649 + 2 + 6 + 9 = 666.

649269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 649269 - 2³ = 649261 is a prime.

It is a super-2 number, since 2×649269² = 843100468722, which contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 3667 + ... + 3839.

It is an arithmetic number, because the mean of its divisors is an integer number (60900).

2⁶⁴⁹²⁶⁹ is an apocalyptic number.

It is an amenable number.

649269 is a deficient number, since it is larger than the sum of its proper divisors (325131).

649269 is a wasteful number, since it uses less digits than its factorization.

649269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 315 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 649269 is about 805.7723003430. The cubic root of 649269 is about 86.5914254925.

It can be divided in two parts, 6492 and 69, that added together give a 8-th power (6561 = 3⁸).

The spelling of 649269 in words is "six hundred forty-nine thousand, two hundred sixty-nine".