64780606 has 16 divisors (see below), whose sum is σ = 109661040. Its totient is φ = 28430080.

The previous prime is 64780603. The next prime is 64780609. The reversal of 64780606 is 60608746.

It is an interprime number because it is at equal distance from previous prime (64780603) and next prime (64780609).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64780603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50131 + ... + 51406.

It is an arithmetic number, because the mean of its divisors is an integer number (6853815).

Almost surely, 2^64780606 is an apocalyptic number.

64780606 is a deficient number, since it is larger than the sum of its proper divisors (44880434).

64780606 is a wasteful number, since it uses less digits than its factorization.

64780606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101579.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 64780606 is about 8048.6400093432. The cubic root of 64780606 is about 401.6196951170.

The spelling of 64780606 in words is "sixty-four million, seven hundred eighty thousand, six hundred six".