488837981 has 2 divisors, whose sum is σ = 488837982. Its totient is φ = 488837980.

The previous prime is 488837959. The next prime is 488837983. The reversal of 488837981 is 189738884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 479172100 + 9665881 = 21890^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 488837981 - 2²⁶ = 421729117 is a prime.

It is a super-2 number, since 2×488837981² = 477925143336312722, which contains 22 as substring.

Together with 488837983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488837983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244418990 + 244418991.

It is an arithmetic number, because the mean of its divisors is an integer number (244418991).

Almost surely, 2^488837981 is an apocalyptic number.

It is an amenable number.

488837981 is a deficient number, since it is larger than the sum of its proper divisors (1).

488837981 is an equidigital number, since it uses as much as digits as its factorization.

488837981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3096576, while the sum is 56.

The square root of 488837981 is about 22109.6807077805. The cubic root of 488837981 is about 787.7498223434.

The spelling of 488837981 in words is "four hundred eighty-eight million, eight hundred thirty-seven thousand, nine hundred eighty-one".