488696921 has 2 divisors, whose sum is σ = 488696922. Its totient is φ = 488696920.

The previous prime is 488696903. The next prime is 488696981. The reversal of 488696921 is 129696884.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420865225 + 67831696 = 20515^2 + 8236^2 .

It is a cyclic number.

It is not a de Polignac number, because 488696921 - 2¹⁰ = 488695897 is a prime.

It is not a weakly prime, because it can be changed into another prime (488696981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244348460 + 244348461.

It is an arithmetic number, because the mean of its divisors is an integer number (244348461).

Almost surely, 2^488696921 is an apocalyptic number.

It is an amenable number.

488696921 is a deficient number, since it is larger than the sum of its proper divisors (1).

488696921 is an equidigital number, since it uses as much as digits as its factorization.

488696921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 53.

The square root of 488696921 is about 22106.4904722572. The cubic root of 488696921 is about 787.6740435344.

The spelling of 488696921 in words is "four hundred eighty-eight million, six hundred ninety-six thousand, nine hundred twenty-one".