488917631 has 2 divisors, whose sum is σ = 488917632. Its totient is φ = 488917630.

The previous prime is 488917621. The next prime is 488917657. The reversal of 488917631 is 136719884.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 488917631 - 2⁶ = 488917567 is a prime.

It is a super-2 number, since 2×488917631² = 478080899805304322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488917621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244458815 + 244458816.

It is an arithmetic number, because the mean of its divisors is an integer number (244458816).

Almost surely, 2^488917631 is an apocalyptic number.

488917631 is a deficient number, since it is larger than the sum of its proper divisors (1).

488917631 is an equidigital number, since it uses as much as digits as its factorization.

488917631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 488917631 is about 22111.4818815926. The cubic root of 488917631 is about 787.7926046614.

The spelling of 488917631 in words is "four hundred eighty-eight million, nine hundred seventeen thousand, six hundred thirty-one".