64667093 has 2 divisors, whose sum is σ = 64667094. Its totient is φ = 64667092.

The previous prime is 64667063. The next prime is 64667117. The reversal of 64667093 is 39076646.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35916049 + 28751044 = 5993^2 + 5362^2 .

It is a cyclic number.

It is not a de Polignac number, because 64667093 - 2¹⁶ = 64601557 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64667093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64667063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32333546 + 32333547.

It is an arithmetic number, because the mean of its divisors is an integer number (32333547).

Almost surely, 2^64667093 is an apocalyptic number.

It is an amenable number.

64667093 is a deficient number, since it is larger than the sum of its proper divisors (1).

64667093 is an equidigital number, since it uses as much as digits as its factorization.

64667093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 64667093 is about 8041.5852292940. The cubic root of 64667093 is about 401.3849761514.

The spelling of 64667093 in words is "sixty-four million, six hundred sixty-seven thousand, ninety-three".