64306013 has 12 divisors (see below), whose sum is σ = 69169788. Its totient is φ = 59754240.

The previous prime is 64306009. The next prime is 64306043. The reversal of 64306013 is 31060346.

It can be written as a sum of positive squares in 2 ways, for example, as 47306884 + 16999129 = 6878^2 + 4123^2 .

It is not a de Polignac number, because 64306013 - 2² = 64306009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64306013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64306043) 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 11 ways as a sum of consecutive naturals, for example, 17453 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (5764149).

Almost surely, 2^64306013 is an apocalyptic number.

It is an amenable number.

64306013 is a deficient number, since it is larger than the sum of its proper divisors (4863775).

64306013 is a wasteful number, since it uses less digits than its factorization.

64306013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452 (or 3433 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 64306013 is about 8019.1030047007. The cubic root of 64306013 is about 400.6365136719.

Adding to 64306013 its reverse (31060346), we get a palindrome (95366359).

The spelling of 64306013 in words is "sixty-four million, three hundred six thousand, thirteen".