649356 has 24 divisors (see below), whose sum is σ = 1545264. Its totient is φ = 212160.

The previous prime is 649321. The next prime is 649361. The reversal of 649356 is 653946.

It is a happy number.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (64386).

2⁶⁴⁹³⁵⁶ is an apocalyptic number.

It is an amenable number.

649356 is an abundant number, since it is smaller than the sum of its proper divisors (895908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649356 is a wasteful number, since it uses less digits than its factorization.

649356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1079 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 649356 is about 805.8262840092. The cubic root of 649356 is about 86.5952929791.

The spelling of 649356 in words is "six hundred forty-nine thousand, three hundred fifty-six".