64650343 has 4 divisors (see below), whose sum is σ = 64691848. Its totient is φ = 64608840.

The previous prime is 64650329. The next prime is 64650347. The reversal of 64650343 is 34305646.

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 64650343 - 2²¹ = 62553191 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 (64650347) 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, 18321 + ... + 21562.

It is an arithmetic number, because the mean of its divisors is an integer number (16172962).

Almost surely, 2^64650343 is an apocalyptic number.

64650343 is a deficient number, since it is larger than the sum of its proper divisors (41505).

64650343 is a wasteful number, since it uses less digits than its factorization.

64650343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41504.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 64650343 is about 8040.5437005218. The cubic root of 64650343 is about 401.3503177257.

Adding to 64650343 its reverse (34305646), we get a palindrome (98955989).

The spelling of 64650343 in words is "sixty-four million, six hundred fifty thousand, three hundred forty-three".