649647710 has 8 divisors (see below), whose sum is σ = 1169365896. Its totient is φ = 259859080.

The previous prime is 649647709. The next prime is 649647751. The reversal of 649647710 is 17746946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32482376 + ... + 32482395.

It is an arithmetic number, because the mean of its divisors is an integer number (146170737).

Almost surely, 2^649647710 is an apocalyptic number.

649647710 is a deficient number, since it is larger than the sum of its proper divisors (519718186).

649647710 is a wasteful number, since it uses less digits than its factorization.

649647710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64964778.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 649647710 is about 25488.1876562458. The cubic root of 649647710 is about 866.0825809701.

The spelling of 649647710 in words is "six hundred forty-nine million, six hundred forty-seven thousand, seven hundred ten".