468378821 has 2 divisors, whose sum is σ = 468378822. Its totient is φ = 468378820.

The previous prime is 468378817. The next prime is 468378839. The reversal of 468378821 is 128873864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 461820100 + 6558721 = 21490^2 + 2561^2 .

It is a cyclic number.

It is not a de Polignac number, because 468378821 - 2² = 468378817 is a prime.

It is a super-2 number, since 2×468378821² = 438757439922700082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468378121) 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, 234189410 + 234189411.

It is an arithmetic number, because the mean of its divisors is an integer number (234189411).

Almost surely, 2^468378821 is an apocalyptic number.

It is an amenable number.

468378821 is a deficient number, since it is larger than the sum of its proper divisors (1).

468378821 is an equidigital number, since it uses as much as digits as its factorization.

468378821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 47.

The square root of 468378821 is about 21642.0613851823. The cubic root of 468378821 is about 776.6030342197.

The spelling of 468378821 in words is "four hundred sixty-eight million, three hundred seventy-eight thousand, eight hundred twenty-one".