64336477 has 2 divisors, whose sum is σ = 64336478. Its totient is φ = 64336476.

The previous prime is 64336453. The next prime is 64336513. The reversal of 64336477 is 77463346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64336441 + 36 = 8021^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 64336477 - 2¹¹ = 64334429 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64336277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32168238 + 32168239.

It is an arithmetic number, because the mean of its divisors is an integer number (32168239).

Almost surely, 2^64336477 is an apocalyptic number.

It is an amenable number.

64336477 is a deficient number, since it is larger than the sum of its proper divisors (1).

64336477 is an equidigital number, since it uses as much as digits as its factorization.

64336477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 40.

The square root of 64336477 is about 8021.0022441089. The cubic root of 64336477 is about 400.6997688450.

The spelling of 64336477 in words is "sixty-four million, three hundred thirty-six thousand, four hundred seventy-seven".