488705665 has 12 divisors (see below), whose sum is σ = 682193556. Its totient is φ = 335112288.

The previous prime is 488705629. The next prime is 488705683. The reversal of 488705665 is 566507884.

It can be written as a sum of positive squares in 2 ways, for example, as 64016001 + 424689664 = 8001^2 + 20608^2 .

It is not a de Polignac number, because 488705665 - 2⁷ = 488705537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 997114 + ... + 997603.

It is an arithmetic number, because the mean of its divisors is an integer number (56849463).

Almost surely, 2^488705665 is an apocalyptic number.

It is an amenable number.

488705665 is a deficient number, since it is larger than the sum of its proper divisors (193487891).

488705665 is a wasteful number, since it uses less digits than its factorization.

488705665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994736 (or 1994729 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The square root of 488705665 is about 22106.6882413445. The cubic root of 488705665 is about 787.6787413205.

The spelling of 488705665 in words is "four hundred eighty-eight million, seven hundred five thousand, six hundred sixty-five".