64850609 has 8 divisors (see below), whose sum is σ = 65536128. Its totient is φ = 64168960.

The previous prime is 64850567. The next prime is 64850623. The reversal of 64850609 is 90605846.

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 64850609 - 2¹⁶ = 64785073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64850209) 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, 42164 + ... + 43674.

It is an arithmetic number, because the mean of its divisors is an integer number (8192016).

Almost surely, 2^64850609 is an apocalyptic number.

It is an amenable number.

64850609 is a deficient number, since it is larger than the sum of its proper divisors (685519).

64850609 is a wasteful number, since it uses less digits than its factorization.

64850609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 64850609 is about 8052.9875822579. The cubic root of 64850609 is about 401.7643086791.

The spelling of 64850609 in words is "sixty-four million, eight hundred fifty thousand, six hundred nine".