488045891 has 2 divisors, whose sum is σ = 488045892. Its totient is φ = 488045890.

The previous prime is 488045881. The next prime is 488045903. The reversal of 488045891 is 198540884.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-488045891 is a prime.

It is not a weakly prime, because it can be changed into another prime (488045801) 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 as a sum of consecutive naturals, namely, 244022945 + 244022946.

It is an arithmetic number, because the mean of its divisors is an integer number (244022946).

Almost surely, 2^488045891 is an apocalyptic number.

488045891 is a deficient number, since it is larger than the sum of its proper divisors (1).

488045891 is an equidigital number, since it uses as much as digits as its factorization.

488045891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 488045891 is about 22091.7607039367. The cubic root of 488045891 is about 787.3241147802.

The spelling of 488045891 in words is "four hundred eighty-eight million, forty-five thousand, eight hundred ninety-one".