649200003 has 32 divisors (see below), whose sum is σ = 917352000. Its totient is φ = 407769600.

The previous prime is 649199989. The next prime is 649200007. The reversal of 649200003 is 300002946.

It is not a de Polignac number, because 649200003 - 2⁴ = 649199987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649200007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 790333 + ... + 791153.

It is an arithmetic number, because the mean of its divisors is an integer number (28667250).

Almost surely, 2^649200003 is an apocalyptic number.

649200003 is a deficient number, since it is larger than the sum of its proper divisors (268151997).

649200003 is a wasteful number, since it uses less digits than its factorization.

649200003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 649200003 is about 25479.4035055768. The cubic root of 649200003 is about 865.8835806321.

Adding to 649200003 its reverse (300002946), we get a palindrome (949202949).

The spelling of 649200003 in words is "six hundred forty-nine million, two hundred thousand, three".