64687079 has 2 divisors, whose sum is σ = 64687080. Its totient is φ = 64687078.

The previous prime is 64687037. The next prime is 64687097. The reversal of 64687079 is 97078646.

It is a happy number.

Together with next prime (64687097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64687079 - 2⁸ = 64686823 is a prime.

It is a super-3 number, since 3×64687079³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64687099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32343539 + 32343540.

It is an arithmetic number, because the mean of its divisors is an integer number (32343540).

Almost surely, 2^64687079 is an apocalyptic number.

64687079 is a deficient number, since it is larger than the sum of its proper divisors (1).

64687079 is an equidigital number, since it uses as much as digits as its factorization.

64687079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 64687079 is about 8042.8277987285. The cubic root of 64687079 is about 401.4263225481.

The spelling of 64687079 in words is "sixty-four million, six hundred eighty-seven thousand, seventy-nine".