648034775 has 24 divisors (see below), whose sum is σ = 840806304. Its totient is φ = 494524800.

The previous prime is 648034769. The next prime is 648034799. The reversal of 648034775 is 577430846.

648034775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 648034775 - 2⁴ = 648034759 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 240737 + ... + 243413.

It is an arithmetic number, because the mean of its divisors is an integer number (35033596).

Almost surely, 2^648034775 is an apocalyptic number.

648034775 is a deficient number, since it is larger than the sum of its proper divisors (192771529).

648034775 is a wasteful number, since it uses less digits than its factorization.

648034775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3126 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 648034775 is about 25456.5271590608. The cubic root of 648034775 is about 865.3652216078.

The spelling of 648034775 in words is "six hundred forty-eight million, thirty-four thousand, seven hundred seventy-five".