488227721 has 2 divisors, whose sum is σ = 488227722. Its totient is φ = 488227720.

The previous prime is 488227717. The next prime is 488227763. The reversal of 488227721 is 127722884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456463225 + 31764496 = 21365^2 + 5636^2 .

It is a cyclic number.

It is not a de Polignac number, because 488227721 - 2² = 488227717 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (488287721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244113860 + 244113861.

It is an arithmetic number, because the mean of its divisors is an integer number (244113861).

Almost surely, 2^488227721 is an apocalyptic number.

It is an amenable number.

488227721 is a deficient number, since it is larger than the sum of its proper divisors (1).

488227721 is an equidigital number, since it uses as much as digits as its factorization.

488227721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100352, while the sum is 41.

The square root of 488227721 is about 22095.8756558775. The cubic root of 488227721 is about 787.4218797455.

The spelling of 488227721 in words is "four hundred eighty-eight million, two hundred twenty-seven thousand, seven hundred twenty-one".