488953909 has 2 divisors, whose sum is σ = 488953910. Its totient is φ = 488953908.

The previous prime is 488953901. The next prime is 488953919. The reversal of 488953909 is 909359884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473193009 + 15760900 = 21753^2 + 3970^2 .

It is a cyclic number.

It is not a de Polignac number, because 488953909 - 2³ = 488953901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 488953909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488953901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244476954 + 244476955.

It is an arithmetic number, because the mean of its divisors is an integer number (244476955).

Almost surely, 2^488953909 is an apocalyptic number.

It is an amenable number.

488953909 is a deficient number, since it is larger than the sum of its proper divisors (1).

488953909 is an equidigital number, since it uses as much as digits as its factorization.

488953909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 488953909 is about 22112.3022094037. The cubic root of 488953909 is about 787.8120890840.

The spelling of 488953909 in words is "four hundred eighty-eight million, nine hundred fifty-three thousand, nine hundred nine".