64283969 has 4 divisors (see below), whose sum is σ = 64346880. Its totient is φ = 64221060.

The previous prime is 64283963. The next prime is 64283977. The reversal of 64283969 is 96938246.

64283969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64283969 - 2¹⁶ = 64218433 is a prime.

It is a super-2 number, since 2×64283969² = 8264857340785922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64283963) 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 in 3 ways as a sum of consecutive naturals, for example, 29897 + ... + 31974.

It is an arithmetic number, because the mean of its divisors is an integer number (16086720).

Almost surely, 2^64283969 is an apocalyptic number.

It is an amenable number.

64283969 is a deficient number, since it is larger than the sum of its proper divisors (62911).

64283969 is a wasteful number, since it uses less digits than its factorization.

64283969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62910.

The product of its digits is 559872, while the sum is 47.

The square root of 64283969 is about 8017.7284189476. The cubic root of 64283969 is about 400.5907292513.

The spelling of 64283969 in words is "sixty-four million, two hundred eighty-three thousand, nine hundred sixty-nine".