64083985 has 8 divisors (see below), whose sum is σ = 87886656. Its totient is φ = 43943280.

The previous prime is 64083967. The next prime is 64083989. The reversal of 64083985 is 58938046.

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

It is not a de Polignac number, because 64083985 - 2⁵ = 64083953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64083989) 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, 915451 + ... + 915520.

It is an arithmetic number, because the mean of its divisors is an integer number (10985832).

Almost surely, 2^64083985 is an apocalyptic number.

It is an amenable number.

64083985 is a deficient number, since it is larger than the sum of its proper divisors (23802671).

64083985 is a wasteful number, since it uses less digits than its factorization.

64083985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830983.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 64083985 is about 8005.2473415879. The cubic root of 64083985 is about 400.1748922706.

The spelling of 64083985 in words is "sixty-four million, eighty-three thousand, nine hundred eighty-five".