64617349 has 2 divisors, whose sum is σ = 64617350. Its totient is φ = 64617348.

The previous prime is 64617251. The next prime is 64617437. The reversal of 64617349 is 94371646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47128225 + 17489124 = 6865^2 + 4182^2 .

It is a cyclic number.

It is not a de Polignac number, because 64617349 - 2²¹ = 62520197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64612349) 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 as a sum of consecutive naturals, namely, 32308674 + 32308675.

It is an arithmetic number, because the mean of its divisors is an integer number (32308675).

Almost surely, 2^64617349 is an apocalyptic number.

It is an amenable number.

64617349 is a deficient number, since it is larger than the sum of its proper divisors (1).

64617349 is an equidigital number, since it uses as much as digits as its factorization.

64617349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 64617349 is about 8038.4917117579. The cubic root of 64617349 is about 401.2820303555.

The spelling of 64617349 in words is "sixty-four million, six hundred seventeen thousand, three hundred forty-nine".