64706045 has 8 divisors (see below), whose sum is σ = 77693496. Its totient is φ = 51734016.

The previous prime is 64706041. The next prime is 64706051. The reversal of 64706045 is 54060746.

It can be written as a sum of positive squares in 4 ways, for example, as 29789764 + 34916281 = 5458^2 + 5909^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 64706045 - 2² = 64706041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64706041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9749 + ... + 14981.

It is an arithmetic number, because the mean of its divisors is an integer number (9711687).

Almost surely, 2^64706045 is an apocalyptic number.

It is an amenable number.

64706045 is a deficient number, since it is larger than the sum of its proper divisors (12987451).

64706045 is a wasteful number, since it uses less digits than its factorization.

64706045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 64706045 is about 8044.0067752333. The cubic root of 64706045 is about 401.4655509267.

The spelling of 64706045 in words is "sixty-four million, seven hundred six thousand, forty-five".