64474843 has 2 divisors, whose sum is σ = 64474844. Its totient is φ = 64474842.

The previous prime is 64474811. The next prime is 64474849. The reversal of 64474843 is 34847446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64474843 - 2⁵ = 64474811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64474796 and 64474805.

It is not a weakly prime, because it can be changed into another prime (64474849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32237421 + 32237422.

It is an arithmetic number, because the mean of its divisors is an integer number (32237422).

Almost surely, 2^64474843 is an apocalyptic number.

64474843 is a deficient number, since it is larger than the sum of its proper divisors (1).

64474843 is an equidigital number, since it uses as much as digits as its factorization.

64474843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 40.

The square root of 64474843 is about 8029.6228429485. The cubic root of 64474843 is about 400.9868197151.

The spelling of 64474843 in words is "sixty-four million, four hundred seventy-four thousand, eight hundred forty-three".