64775706 has 8 divisors (see below), whose sum is σ = 129551424. Its totient is φ = 21591900.

The previous prime is 64775681. The next prime is 64775719. The reversal of 64775706 is 60757746.

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

64775706 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5397970 + ... + 5397981.

It is an arithmetic number, because the mean of its divisors is an integer number (16193928).

Almost surely, 2^64775706 is an apocalyptic number.

64775706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64775706 is a wasteful number, since it uses less digits than its factorization.

64775706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10795956.

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 64775706 is about 8048.3356043346. The cubic root of 64775706 is about 401.6095687008.

The spelling of 64775706 in words is "sixty-four million, seven hundred seventy-five thousand, seven hundred six".