64046861 has 2 divisors, whose sum is σ = 64046862. Its totient is φ = 64046860.

The previous prime is 64046833. The next prime is 64046863. The reversal of 64046861 is 16864046.

64046861 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., 56100100 + 7946761 = 7490^2 + 2819^2 .

It is a cyclic number.

It is not a de Polignac number, because 64046861 - 2¹⁰ = 64045837 is a prime.

Together with 64046863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64046863) 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, 32023430 + 32023431.

It is an arithmetic number, because the mean of its divisors is an integer number (32023431).

Almost surely, 2^64046861 is an apocalyptic number.

It is an amenable number.

64046861 is a deficient number, since it is larger than the sum of its proper divisors (1).

64046861 is an equidigital number, since it uses as much as digits as its factorization.

64046861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 64046861 is about 8002.9282765748. The cubic root of 64046861 is about 400.0976032654.

The spelling of 64046861 in words is "sixty-four million, forty-six thousand, eight hundred sixty-one".