462821231 has 2 divisors, whose sum is σ = 462821232. Its totient is φ = 462821230.

The previous prime is 462821221. The next prime is 462821251. The reversal of 462821231 is 132128264.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 462821231 - 2⁶ = 462821167 is a prime.

It is a super-2 number, since 2×462821231² = 428406983728710722, which contains 22 as substring.

It is a Chen prime.

It is equal to p_24496031 and since 462821231 and 24496031 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 462821194 and 462821203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (462821221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231410615 + 231410616.

It is an arithmetic number, because the mean of its divisors is an integer number (231410616).

Almost surely, 2^462821231 is an apocalyptic number.

462821231 is a deficient number, since it is larger than the sum of its proper divisors (1).

462821231 is an equidigital number, since it uses as much as digits as its factorization.

462821231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 462821231 is about 21513.2803402921. The cubic root of 462821231 is about 773.5191874986.

Adding to 462821231 its reverse (132128264), we get a palindrome (594949495).

The spelling of 462821231 in words is "four hundred sixty-two million, eight hundred twenty-one thousand, two hundred thirty-one".