64753319 has 4 divisors (see below), whose sum is σ = 65382096. Its totient is φ = 64124544.

The previous prime is 64753307. The next prime is 64753321. The reversal of 64753319 is 91335746.

64753319 = 295² + 296² + ... + 603².

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 64753319 - 2¹⁶ = 64687783 is a prime.

It is a super-2 number, since 2×64753319² = 8385984643031522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64753379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314234 + ... + 314439.

It is an arithmetic number, because the mean of its divisors is an integer number (16345524).

Almost surely, 2^64753319 is an apocalyptic number.

64753319 is a deficient number, since it is larger than the sum of its proper divisors (628777).

64753319 is a wasteful number, since it uses less digits than its factorization.

64753319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628776.

The product of its digits is 68040, while the sum is 38.

The square root of 64753319 is about 8046.9446996981. The cubic root of 64753319 is about 401.5632968810.

The spelling of 64753319 in words is "sixty-four million, seven hundred fifty-three thousand, three hundred nineteen".