64966806 has 32 divisors (see below), whose sum is σ = 144720000. Its totient is φ = 21603240.

The previous prime is 64966799. The next prime is 64966807. The reversal of 64966806 is 60866946.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64966807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25741 + ... + 28151.

It is an arithmetic number, because the mean of its divisors is an integer number (4522500).

Almost surely, 2^64966806 is an apocalyptic number.

64966806 is an abundant number, since it is smaller than the sum of its proper divisors (79753194).

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

64966806 is a wasteful number, since it uses less digits than its factorization.

64966806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921 (or 2915 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 64966806 is about 8060.1988809210. The cubic root of 64966806 is about 402.0041211429.

The spelling of 64966806 in words is "sixty-four million, nine hundred sixty-six thousand, eight hundred six".