648612741 has 16 divisors (see below), whose sum is σ = 988916864. Its totient is φ = 370427904.

The previous prime is 648612703. The next prime is 648612751. The reversal of 648612741 is 147216846.

It is not a de Polignac number, because 648612741 - 2⁹ = 648612229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 648612741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648612751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34701 + ... + 50013.

It is an arithmetic number, because the mean of its divisors is an integer number (61807304).

Almost surely, 2^648612741 is an apocalyptic number.

It is an amenable number.

648612741 is a deficient number, since it is larger than the sum of its proper divisors (340304123).

648612741 is a wasteful number, since it uses less digits than its factorization.

648612741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17340.

The product of its digits is 64512, while the sum is 39.

The square root of 648612741 is about 25467.8766488296. The cubic root of 648612741 is about 865.6224110250.

The spelling of 648612741 in words is "six hundred forty-eight million, six hundred twelve thousand, seven hundred forty-one".