64741805 has 4 divisors (see below), whose sum is σ = 77690172. Its totient is φ = 51793440.

The previous prime is 64741799. The next prime is 64741811. The reversal of 64741805 is 50814746.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (64741799) and next prime (64741811).

It can be written as a sum of positive squares in 2 ways, for example, as 49477156 + 15264649 = 7034^2 + 3907^2 .

It is not a de Polignac number, because 64741805 - 2⁸ = 64741549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6474176 + ... + 6474185.

It is an arithmetic number, because the mean of its divisors is an integer number (19422543).

Almost surely, 2^64741805 is an apocalyptic number.

It is an amenable number.

64741805 is a deficient number, since it is larger than the sum of its proper divisors (12948367).

64741805 is a wasteful number, since it uses less digits than its factorization.

64741805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12948366.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 64741805 is about 8046.2292410793. The cubic root of 64741805 is about 401.5394943746.

The spelling of 64741805 in words is "sixty-four million, seven hundred forty-one thousand, eight hundred five".