64006771 has 2 divisors, whose sum is σ = 64006772. Its totient is φ = 64006770.

The previous prime is 64006739. The next prime is 64006777. The reversal of 64006771 is 17760046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64006771 - 2⁵ = 64006739 is a prime.

It is a Chen prime.

It is equal to p_3785440 and since 64006771 and 3785440 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (64006777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32003385 + 32003386.

It is an arithmetic number, because the mean of its divisors is an integer number (32003386).

Almost surely, 2^64006771 is an apocalyptic number.

64006771 is a deficient number, since it is larger than the sum of its proper divisors (1).

64006771 is an equidigital number, since it uses as much as digits as its factorization.

64006771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 64006771 is about 8000.4231763076. The cubic root of 64006771 is about 400.0141057526.

The spelling of 64006771 in words is "sixty-four million, six thousand, seven hundred seventy-one".