649432303 has 4 divisors (see below), whose sum is σ = 699388648. Its totient is φ = 599475960.

The previous prime is 649432297. The next prime is 649432313. The reversal of 649432303 is 303234946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 649432303 - 2⁵ = 649432271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649432313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24978153 + ... + 24978178.

It is an arithmetic number, because the mean of its divisors is an integer number (174847162).

Almost surely, 2^649432303 is an apocalyptic number.

649432303 is a deficient number, since it is larger than the sum of its proper divisors (49956345).

649432303 is a wasteful number, since it uses less digits than its factorization.

649432303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49956344.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 649432303 is about 25483.9616818108. The cubic root of 649432303 is about 865.9868465841.

The spelling of 649432303 in words is "six hundred forty-nine million, four hundred thirty-two thousand, three hundred three".