64746287 has 2 divisors, whose sum is σ = 64746288. Its totient is φ = 64746286.

The previous prime is 64746277. The next prime is 64746293. The reversal of 64746287 is 78264746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64746287 - 2⁶ = 64746223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64746247) 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, 32373143 + 32373144.

It is an arithmetic number, because the mean of its divisors is an integer number (32373144).

Almost surely, 2^64746287 is an apocalyptic number.

64746287 is a deficient number, since it is larger than the sum of its proper divisors (1).

64746287 is an equidigital number, since it uses as much as digits as its factorization.

64746287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 44.

The square root of 64746287 is about 8046.5077518138. The cubic root of 64746287 is about 401.5487601985.

The spelling of 64746287 in words is "sixty-four million, seven hundred forty-six thousand, two hundred eighty-seven".