64332869 has 2 divisors, whose sum is σ = 64332870. Its totient is φ = 64332868.

The previous prime is 64332823. The next prime is 64332881. The reversal of 64332869 is 96823346.

64332869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41770369 + 22562500 = 6463^2 + 4750^2 .

It is a cyclic number.

It is not a de Polignac number, because 64332869 - 2¹² = 64328773 is a prime.

It is a super-2 number, since 2×64332869² = 8277436067542322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64332809) 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 as a sum of consecutive naturals, namely, 32166434 + 32166435.

It is an arithmetic number, because the mean of its divisors is an integer number (32166435).

Almost surely, 2^64332869 is an apocalyptic number.

It is an amenable number.

64332869 is a deficient number, since it is larger than the sum of its proper divisors (1).

64332869 is an equidigital number, since it uses as much as digits as its factorization.

64332869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 64332869 is about 8020.7773314062. Note that the first 3 decimals coincide. The cubic root of 64332869 is about 400.6922782691.

The spelling of 64332869 in words is "sixty-four million, three hundred thirty-two thousand, eight hundred sixty-nine".