648745883 has 2 divisors, whose sum is σ = 648745884. Its totient is φ = 648745882.

The previous prime is 648745879. The next prime is 648745931. The reversal of 648745883 is 388547846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648745883 - 2² = 648745879 is a prime.

It is not a weakly prime, because it can be changed into another prime (648745813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324372941 + 324372942.

It is an arithmetic number, because the mean of its divisors is an integer number (324372942).

Almost surely, 2^648745883 is an apocalyptic number.

648745883 is a deficient number, since it is larger than the sum of its proper divisors (1).

648745883 is an equidigital number, since it uses as much as digits as its factorization.

648745883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 53.

The square root of 648745883 is about 25470.4904350113. The cubic root of 648745883 is about 865.6816363053.

The spelling of 648745883 in words is "six hundred forty-eight million, seven hundred forty-five thousand, eight hundred eighty-three".