488890869 has 4 divisors (see below), whose sum is σ = 651854496. Its totient is φ = 325927244.

The previous prime is 488890861. The next prime is 488890891. The reversal of 488890869 is 968098884.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 488890869 - 2³ = 488890861 is a prime.

It is a super-2 number, since 2×488890869² = 478028563583150322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488890861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81481809 + ... + 81481814.

It is an arithmetic number, because the mean of its divisors is an integer number (162963624).

Almost surely, 2^488890869 is an apocalyptic number.

It is an amenable number.

488890869 is a deficient number, since it is larger than the sum of its proper divisors (162963627).

488890869 is a wasteful number, since it uses less digits than its factorization.

488890869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162963626.

The product of its (nonzero) digits is 7962624, while the sum is 60.

The square root of 488890869 is about 22110.8767126046. The cubic root of 488890869 is about 787.7782305358.

The spelling of 488890869 in words is "four hundred eighty-eight million, eight hundred ninety thousand, eight hundred sixty-nine".