488634721 has 2 divisors, whose sum is σ = 488634722. Its totient is φ = 488634720.

The previous prime is 488634703. The next prime is 488634743. The reversal of 488634721 is 127436884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246490000 + 242144721 = 15700^2 + 15561^2 .

It is a cyclic number.

It is not a de Polignac number, because 488634721 - 2⁷ = 488634593 is a prime.

It is not a weakly prime, because it can be changed into another prime (488634821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244317360 + 244317361.

It is an arithmetic number, because the mean of its divisors is an integer number (244317361).

Almost surely, 2^488634721 is an apocalyptic number.

It is an amenable number.

488634721 is a deficient number, since it is larger than the sum of its proper divisors (1).

488634721 is an equidigital number, since it uses as much as digits as its factorization.

488634721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The square root of 488634721 is about 22105.0836008372. The cubic root of 488634721 is about 787.6406244546.

It can be divided in two parts, 488 and 634721, that added together give a square (635209 = 797²).

The spelling of 488634721 in words is "four hundred eighty-eight million, six hundred thirty-four thousand, seven hundred twenty-one".