488837989 has 2 divisors, whose sum is σ = 488837990. Its totient is φ = 488837988.

The previous prime is 488837983. The next prime is 488838013. The reversal of 488837989 is 989738884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418529764 + 70308225 = 20458^2 + 8385^2 .

It is a cyclic number.

It is not a de Polignac number, because 488837989 - 2³ = 488837981 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 488837989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488837981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244418994 + 244418995.

It is an arithmetic number, because the mean of its divisors is an integer number (244418995).

Almost surely, 2^488837989 is an apocalyptic number.

It is an amenable number.

488837989 is a deficient number, since it is larger than the sum of its proper divisors (1).

488837989 is an equidigital number, since it uses as much as digits as its factorization.

488837989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27869184, while the sum is 64.

The square root of 488837989 is about 22109.6808886967. The cubic root of 488837989 is about 787.7498266407.

The spelling of 488837989 in words is "four hundred eighty-eight million, eight hundred thirty-seven thousand, nine hundred eighty-nine".