64964329 has 4 divisors (see below), whose sum is σ = 66029380. Its totient is φ = 63899280.

The previous prime is 64964309. The next prime is 64964353. The reversal of 64964329 is 92346946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2190400 + 62773929 = 1480^2 + 7923^2 .

It is a cyclic number.

It is not a de Polignac number, because 64964329 - 2⁵ = 64964297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64964309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532434 + ... + 532555.

It is an arithmetic number, because the mean of its divisors is an integer number (16507345).

Almost surely, 2^64964329 is an apocalyptic number.

It is an amenable number.

64964329 is a deficient number, since it is larger than the sum of its proper divisors (1065051).

64964329 is a wasteful number, since it uses less digits than its factorization.

64964329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065050.

The product of its digits is 279936, while the sum is 43.

The square root of 64964329 is about 8060.0452231982. The cubic root of 64964329 is about 401.9990119857. Note that the first 3 decimals are identical.

The spelling of 64964329 in words is "sixty-four million, nine hundred sixty-four thousand, three hundred twenty-nine".