64451417 has 2 divisors, whose sum is σ = 64451418. Its totient is φ = 64451416.

The previous prime is 64451407. The next prime is 64451459. The reversal of 64451417 is 71415446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46566976 + 17884441 = 6824^2 + 4229^2 .

It is a cyclic number.

It is not a de Polignac number, because 64451417 - 2⁸ = 64451161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64451407) 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, 32225708 + 32225709.

It is an arithmetic number, because the mean of its divisors is an integer number (32225709).

Almost surely, 2^64451417 is an apocalyptic number.

It is an amenable number.

64451417 is a deficient number, since it is larger than the sum of its proper divisors (1).

64451417 is an equidigital number, since it uses as much as digits as its factorization.

64451417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 64451417 is about 8028.1639868652. The cubic root of 64451417 is about 400.9382495819.

The spelling of 64451417 in words is "sixty-four million, four hundred fifty-one thousand, four hundred seventeen".