64537349 has 2 divisors, whose sum is σ = 64537350. Its totient is φ = 64537348.

The previous prime is 64537339. The next prime is 64537373. The reversal of 64537349 is 94373546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43652449 + 20884900 = 6607^2 + 4570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64537349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64537309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32268674 + 32268675.

It is an arithmetic number, because the mean of its divisors is an integer number (32268675).

Almost surely, 2^64537349 is an apocalyptic number.

It is an amenable number.

64537349 is a deficient number, since it is larger than the sum of its proper divisors (1).

64537349 is an equidigital number, since it uses as much as digits as its factorization.

64537349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 64537349 is about 8033.5141127653. The cubic root of 64537349 is about 401.1163585439.

The spelling of 64537349 in words is "sixty-four million, five hundred thirty-seven thousand, three hundred forty-nine".