64850808 has 64 divisors (see below), whose sum is σ = 179809920. Its totient is φ = 19324800.

The previous prime is 64850771. The next prime is 64850827. The reversal of 64850808 is 80805846.

It is a Cunningham number, because it is equal to 8053²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14091 + ... + 18117.

It is an arithmetic number, because the mean of its divisors is an integer number (2809530).

Almost surely, 2^64850808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64850808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89904960).

64850808 is an abundant number, since it is smaller than the sum of its proper divisors (114959112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64850808 is a wasteful number, since it uses less digits than its factorization.

64850808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108 (or 4104 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 64850808 is about 8052.9999379113. Note that the first 4 decimals coincide. The cubic root of 64850808 is about 401.7647196288.

The spelling of 64850808 in words is "sixty-four million, eight hundred fifty thousand, eight hundred eight".