64675469 has 2 divisors, whose sum is σ = 64675470. Its totient is φ = 64675468.

The previous prime is 64675453. The next prime is 64675493. The reversal of 64675469 is 96457646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64561225 + 114244 = 8035^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 64675469 - 2⁴ = 64675453 is a prime.

It is a super-2 number, since 2×64675469² = 8365832580739922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64675439) 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, 32337734 + 32337735.

It is an arithmetic number, because the mean of its divisors is an integer number (32337735).

Almost surely, 2^64675469 is an apocalyptic number.

It is an amenable number.

64675469 is a deficient number, since it is larger than the sum of its proper divisors (1).

64675469 is an equidigital number, since it uses as much as digits as its factorization.

64675469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The square root of 64675469 is about 8042.1060052700. The cubic root of 64675469 is about 401.4023051888.

The spelling of 64675469 in words is "sixty-four million, six hundred seventy-five thousand, four hundred sixty-nine".