64104493 has 2 divisors, whose sum is σ = 64104494. Its totient is φ = 64104492.

The previous prime is 64104451. The next prime is 64104511. The reversal of 64104493 is 39440146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60016009 + 4088484 = 7747^2 + 2022^2 .

It is a cyclic number.

It is not a de Polignac number, because 64104493 - 2⁹ = 64103981 is a prime.

It is a super-3 number, since 3×64104493³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64104793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32052246 + 32052247.

It is an arithmetic number, because the mean of its divisors is an integer number (32052247).

Almost surely, 2^64104493 is an apocalyptic number.

It is an amenable number.

64104493 is a deficient number, since it is larger than the sum of its proper divisors (1).

64104493 is an equidigital number, since it uses as much as digits as its factorization.

64104493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 64104493 is about 8006.5281489545. The cubic root of 64104493 is about 400.2175753809.

The spelling of 64104493 in words is "sixty-four million, one hundred four thousand, four hundred ninety-three".