488785191 has 4 divisors (see below), whose sum is σ = 651713592. Its totient is φ = 325856792.

The previous prime is 488785189. The next prime is 488785201. The reversal of 488785191 is 191587884.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 488785191 - 2¹ = 488785189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488785181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81464196 + ... + 81464201.

It is an arithmetic number, because the mean of its divisors is an integer number (162928398).

Almost surely, 2^488785191 is an apocalyptic number.

488785191 is a deficient number, since it is larger than the sum of its proper divisors (162928401).

488785191 is a wasteful number, since it uses less digits than its factorization.

488785191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162928400.

The product of its digits is 645120, while the sum is 51.

The square root of 488785191 is about 22108.4868545995. The cubic root of 488785191 is about 787.7214647472.

The spelling of 488785191 in words is "four hundred eighty-eight million, seven hundred eighty-five thousand, one hundred ninety-one".