648754615 has 16 divisors (see below), whose sum is σ = 785535552. Its totient is φ = 514335744.

The previous prime is 648754597. The next prime is 648754627. The reversal of 648754615 is 516457846.

It is a cyclic number.

It is not a de Polignac number, because 648754615 - 2⁹ = 648754103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381447 + ... + 383143.

It is an arithmetic number, because the mean of its divisors is an integer number (49095972).

Almost surely, 2^648754615 is an apocalyptic number.

648754615 is a deficient number, since it is larger than the sum of its proper divisors (136780937).

648754615 is a wasteful number, since it uses less digits than its factorization.

648754615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346.

The product of its digits is 806400, while the sum is 46.

The square root of 648754615 is about 25470.6618484876. The cubic root of 648754615 is about 865.6855202596.

The spelling of 648754615 in words is "six hundred forty-eight million, seven hundred fifty-four thousand, six hundred fifteen".