488616581 has 2 divisors, whose sum is σ = 488616582. Its totient is φ = 488616580.

The previous prime is 488616551. The next prime is 488616587. The reversal of 488616581 is 185616884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363512356 + 125104225 = 19066^2 + 11185^2 .

It is a cyclic number.

It is not a de Polignac number, because 488616581 - 2⁶ = 488616517 is a prime.

It is a super-2 number, since 2×488616581² = 477492326456259122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488616587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244308290 + 244308291.

It is an arithmetic number, because the mean of its divisors is an integer number (244308291).

Almost surely, 2^488616581 is an apocalyptic number.

It is an amenable number.

488616581 is a deficient number, since it is larger than the sum of its proper divisors (1).

488616581 is an equidigital number, since it uses as much as digits as its factorization.

488616581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 47.

The square root of 488616581 is about 22104.6732841723. The cubic root of 488616581 is about 787.6308775843.

The spelling of 488616581 in words is "four hundred eighty-eight million, six hundred sixteen thousand, five hundred eighty-one".