64485433 has 2 divisors, whose sum is σ = 64485434. Its totient is φ = 64485432.

The previous prime is 64485431. The next prime is 64485451. The reversal of 64485433 is 33458446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58782889 + 5702544 = 7667^2 + 2388^2 .

It is a cyclic number.

It is not a de Polignac number, because 64485433 - 2¹ = 64485431 is a prime.

Together with 64485431, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 64485392 and 64485401.

It is not a weakly prime, because it can be changed into another prime (64485431) 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, 32242716 + 32242717.

It is an arithmetic number, because the mean of its divisors is an integer number (32242717).

Almost surely, 2^64485433 is an apocalyptic number.

It is an amenable number.

64485433 is a deficient number, since it is larger than the sum of its proper divisors (1).

64485433 is an equidigital number, since it uses as much as digits as its factorization.

64485433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 37.

The square root of 64485433 is about 8030.2822490869. The cubic root of 64485433 is about 401.0087725562.

It can be divided in two parts, 6448 and 5433, that added together give a square (11881 = 109²).

The spelling of 64485433 in words is "sixty-four million, four hundred eighty-five thousand, four hundred thirty-three".