64123433 has 4 divisors (see below), whose sum is σ = 69952848. Its totient is φ = 58294020.

The previous prime is 64123421. The next prime is 64123447. The reversal of 64123433 is 33432146.

It is a happy number.

64123433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64123433 - 2⁸ = 64123177 is a prime.

It is a super-2 number, since 2×64123433² = 8223629319410978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64123453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2914691 + ... + 2914712.

It is an arithmetic number, because the mean of its divisors is an integer number (17488212).

Almost surely, 2^64123433 is an apocalyptic number.

It is an amenable number.

64123433 is a deficient number, since it is larger than the sum of its proper divisors (5829415).

64123433 is a wasteful number, since it uses less digits than its factorization.

64123433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829414.

The product of its digits is 5184, while the sum is 26.

The square root of 64123433 is about 8007.7108464280. The cubic root of 64123433 is about 400.2569869423.

Adding to 64123433 its reverse (33432146), we get a palindrome (97555579).

The spelling of 64123433 in words is "sixty-four million, one hundred twenty-three thousand, four hundred thirty-three".