64433329 has 2 divisors, whose sum is σ = 64433330. Its totient is φ = 64433328.

The previous prime is 64433321. The next prime is 64433333. The reversal of 64433329 is 92333446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63234304 + 1199025 = 7952^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 64433329 - 2³ = 64433321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64433294 and 64433303.

It is not a weakly prime, because it can be changed into another prime (64433321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32216664 + 32216665.

It is an arithmetic number, because the mean of its divisors is an integer number (32216665).

Almost surely, 2^64433329 is an apocalyptic number.

It is an amenable number.

64433329 is a deficient number, since it is larger than the sum of its proper divisors (1).

64433329 is an equidigital number, since it uses as much as digits as its factorization.

64433329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 34.

The square root of 64433329 is about 8027.0373737762. The cubic root of 64433329 is about 400.9007389011.

The spelling of 64433329 in words is "sixty-four million, four hundred thirty-three thousand, three hundred twenty-nine".