468677821 has 2 divisors, whose sum is σ = 468677822. Its totient is φ = 468677820.

The previous prime is 468677801. The next prime is 468677851. The reversal of 468677821 is 128776864.

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., 346332100 + 122345721 = 18610^2 + 11061^2 .

It is a cyclic number.

It is not a de Polignac number, because 468677821 - 2⁵ = 468677789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468677801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234338910 + 234338911.

It is an arithmetic number, because the mean of its divisors is an integer number (234338911).

Almost surely, 2^468677821 is an apocalyptic number.

It is an amenable number.

468677821 is a deficient number, since it is larger than the sum of its proper divisors (1).

468677821 is an equidigital number, since it uses as much as digits as its factorization.

468677821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 49.

The square root of 468677821 is about 21648.9681278346. The cubic root of 468677821 is about 776.7682529867.

The spelling of 468677821 in words is "four hundred sixty-eight million, six hundred seventy-seven thousand, eight hundred twenty-one".