64709226 has 64 divisors (see below), whose sum is σ = 149385600. Its totient is φ = 20746368.

The previous prime is 64709219. The next prime is 64709243. The reversal of 64709226 is 62290746.

It is a happy number.

64709226 is a `hidden beast` number, since 647 + 0 + 9 + 2 + 2 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277606 + ... + 277838.

It is an arithmetic number, because the mean of its divisors is an integer number (2334150).

Almost surely, 2^64709226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64709226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74692800).

64709226 is an abundant number, since it is smaller than the sum of its proper divisors (84676374).

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

64709226 is a wasteful number, since it uses less digits than its factorization.

64709226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 64709226 is about 8044.2044976492. The cubic root of 64709226 is about 401.4721296062.

The spelling of 64709226 in words is "sixty-four million, seven hundred nine thousand, two hundred twenty-six".