64849 has 2 divisors, whose sum is σ = 64850. Its totient is φ = 64848.

The previous prime is 64817. The next prime is 64853. The reversal of 64849 is 94846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53824 + 11025 = 232^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 64849 - 2⁵ = 64817 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 64849.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64879) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32424 + 32425.

It is an arithmetic number, because the mean of its divisors is an integer number (32425).

2⁶⁴⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

64849 is a deficient number, since it is larger than the sum of its proper divisors (1).

64849 is an equidigital number, since it uses as much as digits as its factorization.

64849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 64849 is about 254.6546681292. The cubic root of 64849 is about 40.1760985944.

The spelling of 64849 in words is "sixty-four thousand, eight hundred forty-nine".