649873352 has 12 divisors (see below), whose sum is σ = 1218647745. Its totient is φ = 324900624.

The previous prime is 649873307. The next prime is 649873391. The reversal of 649873352 is 253378946.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

649873352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 648924676 + 948676 = 25474^2 + 974^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=18026.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 649873297 and 649873306.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 67598 + ... + 76610.

Almost surely, 2^649873352 is an apocalyptic number.

It is an amenable number.

649873352 is a deficient number, since it is larger than the sum of its proper divisors (568774393).

649873352 is an frugal number, since it uses more digits than its factorization.

649873352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18032 (or 9015 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 649873352 is about 25492.6136753374. The cubic root of 649873352 is about 866.1828414557.

The spelling of 649873352 in words is "six hundred forty-nine million, eight hundred seventy-three thousand, three hundred fifty-two".