64433233 has 2 divisors, whose sum is σ = 64433234. Its totient is φ = 64433232.

The previous prime is 64433219. The next prime is 64433249. The reversal of 64433233 is 33233446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62853184 + 1580049 = 7928^2 + 1257^2 .

It is a cyclic number.

It is not a de Polignac number, because 64433233 - 2⁹ = 64432721 is a prime.

It is not a weakly prime, because it can be changed into another prime (64433333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32216616 + 32216617.

It is an arithmetic number, because the mean of its divisors is an integer number (32216617).

Almost surely, 2^64433233 is an apocalyptic number.

It is an amenable number.

64433233 is a deficient number, since it is larger than the sum of its proper divisors (1).

64433233 is an equidigital number, since it uses as much as digits as its factorization.

64433233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 28.

The square root of 64433233 is about 8027.0313939837. The cubic root of 64433233 is about 400.9005397987.

Adding to 64433233 its reverse (33233446), we get a palindrome (97666679).

The spelling of 64433233 in words is "sixty-four million, four hundred thirty-three thousand, two hundred thirty-three".