64783049 has 2 divisors, whose sum is σ = 64783050. Its totient is φ = 64783048.

The previous prime is 64783021. The next prime is 64783051. The reversal of 64783049 is 94038746.

64783049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40704400 + 24078649 = 6380^2 + 4907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64783049 is a prime.

Together with 64783051, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64782997 and 64783015.

It is not a weakly prime, because it can be changed into another prime (64783009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32391524 + 32391525.

It is an arithmetic number, because the mean of its divisors is an integer number (32391525).

Almost surely, 2^64783049 is an apocalyptic number.

It is an amenable number.

64783049 is a deficient number, since it is larger than the sum of its proper divisors (1).

64783049 is an equidigital number, since it uses as much as digits as its factorization.

64783049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 64783049 is about 8048.7917726824. The cubic root of 64783049 is about 401.6247436680.

The spelling of 64783049 in words is "sixty-four million, seven hundred eighty-three thousand, forty-nine".