64949359 has 4 divisors (see below), whose sum is σ = 65289600. Its totient is φ = 64609120.

The previous prime is 64949351. The next prime is 64949377. The reversal of 64949359 is 95394946.

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 64949359 - 2³ = 64949351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64949351) 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, 169834 + ... + 170215.

It is an arithmetic number, because the mean of its divisors is an integer number (16322400).

Almost surely, 2^64949359 is an apocalyptic number.

64949359 is a deficient number, since it is larger than the sum of its proper divisors (340241).

64949359 is a wasteful number, since it uses less digits than its factorization.

64949359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340240.

The product of its digits is 1049760, while the sum is 49.

The square root of 64949359 is about 8059.1165148545. The cubic root of 64949359 is about 401.9681315133.

The spelling of 64949359 in words is "sixty-four million, nine hundred forty-nine thousand, three hundred fifty-nine".