649276 has 24 divisors (see below), whose sum is σ = 1206576. Its totient is φ = 305280.

The previous prime is 649273. The next prime is 649277. The reversal of 649276 is 672946.

649276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 6 + 4² + 2⁷ + 9⁶ + 7⁶ + 6² .

Its product of digits (18144) is a multiple of the sum of its prime factors (189).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6015 + ... + 6121.

It is an arithmetic number, because the mean of its divisors is an integer number (50274).

2⁶⁴⁹²⁷⁶ is an apocalyptic number.

It is an amenable number.

649276 is a deficient number, since it is larger than the sum of its proper divisors (557300).

649276 is a wasteful number, since it uses less digits than its factorization.

649276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 187 counting only the distinct ones).

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

The square root of 649276 is about 805.7766439901. The cubic root of 649276 is about 86.5917366824.

The spelling of 649276 in words is "six hundred forty-nine thousand, two hundred seventy-six".