64873266 has 24 divisors (see below), whose sum is σ = 134078832. Its totient is φ = 20925000.

The previous prime is 64873243. The next prime is 64873267. The reversal of 64873266 is 66237846.

It is not an unprimeable number, because it can be changed into a prime (64873267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141 + ... + 11391.

It is an arithmetic number, because the mean of its divisors is an integer number (5586618).

Almost surely, 2^64873266 is an apocalyptic number.

64873266 is an abundant number, since it is smaller than the sum of its proper divisors (69205566).

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

64873266 is a wasteful number, since it uses less digits than its factorization.

64873266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11318 (or 11287 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 64873266 is about 8054.3942044079. The cubic root of 64873266 is about 401.8110916582.

The spelling of 64873266 in words is "sixty-four million, eight hundred seventy-three thousand, two hundred sixty-six".