64883309 has 8 divisors (see below), whose sum is σ = 68976480. Its totient is φ = 60858000.

The previous prime is 64883297. The next prime is 64883317. The reversal of 64883309 is 90338846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64883309 - 2⁴ = 64883293 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 (64883209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14987 + ... + 18824.

It is an arithmetic number, because the mean of its divisors is an integer number (8622060).

Almost surely, 2^64883309 is an apocalyptic number.

It is an amenable number.

64883309 is a deficient number, since it is larger than the sum of its proper divisors (4093171).

64883309 is a wasteful number, since it uses less digits than its factorization.

64883309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33931.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 64883309 is about 8055.0176287827. The cubic root of 64883309 is about 401.8318253174.

The spelling of 64883309 in words is "sixty-four million, eight hundred eighty-three thousand, three hundred nine".