465423421 has 2 divisors, whose sum is σ = 465423422. Its totient is φ = 465423420.

The previous prime is 465423419. The next prime is 465423463. The reversal of 465423421 is 124324564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383611396 + 81812025 = 19586^2 + 9045^2 .

It is a cyclic number.

It is not a de Polignac number, because 465423421 - 2¹ = 465423419 is a prime.

Together with 465423419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465423401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232711710 + 232711711.

It is an arithmetic number, because the mean of its divisors is an integer number (232711711).

Almost surely, 2^465423421 is an apocalyptic number.

It is an amenable number.

465423421 is a deficient number, since it is larger than the sum of its proper divisors (1).

465423421 is an equidigital number, since it uses as much as digits as its factorization.

465423421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

The square root of 465423421 is about 21573.6742582250. The cubic root of 465423421 is about 774.9661704276.

Adding to 465423421 its reverse (124324564), we get a palindrome (589747985).

The spelling of 465423421 in words is "four hundred sixty-five million, four hundred twenty-three thousand, four hundred twenty-one".