213633463 has 2 divisors, whose sum is σ = 213633464. Its totient is φ = 213633462.

The previous prime is 213633419. The next prime is 213633467. The reversal of 213633463 is 364336312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213633463 - 2¹³ = 213625271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213633467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106816731 + 106816732.

It is an arithmetic number, because the mean of its divisors is an integer number (106816732).

Almost surely, 2^213633463 is an apocalyptic number.

213633463 is a deficient number, since it is larger than the sum of its proper divisors (1).

213633463 is an equidigital number, since it uses as much as digits as its factorization.

213633463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 31.

The square root of 213633463 is about 14616.2054925346. The cubic root of 213633463 is about 597.8007104291.

Adding to 213633463 its reverse (364336312), we get a palindrome (577969775).

The spelling of 213633463 in words is "two hundred thirteen million, six hundred thirty-three thousand, four hundred sixty-three".