64773047 has 2 divisors, whose sum is σ = 64773048. Its totient is φ = 64773046.

The previous prime is 64773001. The next prime is 64773053. The reversal of 64773047 is 74037746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64773047 - 2¹⁴ = 64756663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64773047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64773067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32386523 + 32386524.

It is an arithmetic number, because the mean of its divisors is an integer number (32386524).

Almost surely, 2^64773047 is an apocalyptic number.

64773047 is a deficient number, since it is larger than the sum of its proper divisors (1).

64773047 is an equidigital number, since it uses as much as digits as its factorization.

64773047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 38.

The square root of 64773047 is about 8048.1704132057. The cubic root of 64773047 is about 401.6040733563.

The spelling of 64773047 in words is "sixty-four million, seven hundred seventy-three thousand, forty-seven".