64020787 has 2 divisors, whose sum is σ = 64020788. Its totient is φ = 64020786.

The previous prime is 64020779. The next prime is 64020809. The reversal of 64020787 is 78702046.

64020787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64020787 - 2³ = 64020779 is a prime.

It is a super-2 number, since 2×64020787² = 8197322336198738, which contains 22 as substring.

It is equal to p_3786217 and since 64020787 and 3786217 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 (64020727) 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, 32010393 + 32010394.

It is an arithmetic number, because the mean of its divisors is an integer number (32010394).

Almost surely, 2^64020787 is an apocalyptic number.

64020787 is a deficient number, since it is larger than the sum of its proper divisors (1).

64020787 is an equidigital number, since it uses as much as digits as its factorization.

64020787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 64020787 is about 8001.2990820241. The cubic root of 64020787 is about 400.0433015623.

The spelling of 64020787 in words is "sixty-four million, twenty thousand, seven hundred eighty-seven".