488312891 has 4 divisors (see below), whose sum is σ = 532704984. Its totient is φ = 443920800.

The previous prime is 488312873. The next prime is 488312897. The reversal of 488312891 is 198213884.

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 488312891 - 2⁶ = 488312827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (488312897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22196030 + ... + 22196051.

It is an arithmetic number, because the mean of its divisors is an integer number (133176246).

Almost surely, 2^488312891 is an apocalyptic number.

488312891 is a deficient number, since it is larger than the sum of its proper divisors (44392093).

488312891 is a wasteful number, since it uses less digits than its factorization.

488312891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44392092.

The product of its digits is 110592, while the sum is 44.

The square root of 488312891 is about 22097.8028545826. The cubic root of 488312891 is about 787.4676649527.

The spelling of 488312891 in words is "four hundred eighty-eight million, three hundred twelve thousand, eight hundred ninety-one".