468838421 has 2 divisors, whose sum is σ = 468838422. Its totient is φ = 468838420.

The previous prime is 468838333. The next prime is 468838423. The reversal of 468838421 is 124838864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352500625 + 116337796 = 18775^2 + 10786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-468838421 is a prime.

Together with 468838423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468838423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234419210 + 234419211.

It is an arithmetic number, because the mean of its divisors is an integer number (234419211).

Almost surely, 2^468838421 is an apocalyptic number.

It is an amenable number.

468838421 is a deficient number, since it is larger than the sum of its proper divisors (1).

468838421 is an equidigital number, since it uses as much as digits as its factorization.

468838421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 44.

The square root of 468838421 is about 21652.6769938500. The cubic root of 468838421 is about 776.8569669031.

The spelling of 468838421 in words is "four hundred sixty-eight million, eight hundred thirty-eight thousand, four hundred twenty-one".