64822013 has 2 divisors, whose sum is σ = 64822014. Its totient is φ = 64822012.

The previous prime is 64822007. The next prime is 64822067. The reversal of 64822013 is 31022846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42797764 + 22024249 = 6542^2 + 4693^2 .

It is a cyclic number.

It is not a de Polignac number, because 64822013 - 2¹² = 64817917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64822313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32411006 + 32411007.

It is an arithmetic number, because the mean of its divisors is an integer number (32411007).

Almost surely, 2^64822013 is an apocalyptic number.

It is an amenable number.

64822013 is a deficient number, since it is larger than the sum of its proper divisors (1).

64822013 is an equidigital number, since it uses as much as digits as its factorization.

64822013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 64822013 is about 8051.2118963545. The cubic root of 64822013 is about 401.7052470838.

Adding to 64822013 its reverse (31022846), we get a palindrome (95844859).

The spelling of 64822013 in words is "sixty-four million, eight hundred twenty-two thousand, thirteen".