64936903 has 2 divisors, whose sum is σ = 64936904. Its totient is φ = 64936902.

The previous prime is 64936901. The next prime is 64936933. The reversal of 64936903 is 30963946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64936903 - 2¹ = 64936901 is a prime.

Together with 64936901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64936901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32468451 + 32468452.

It is an arithmetic number, because the mean of its divisors is an integer number (32468452).

Almost surely, 2^64936903 is an apocalyptic number.

64936903 is a deficient number, since it is larger than the sum of its proper divisors (1).

64936903 is an equidigital number, since it uses as much as digits as its factorization.

64936903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 64936903 is about 8058.3436883767. The cubic root of 64936903 is about 401.9424333630.

The spelling of 64936903 in words is "sixty-four million, nine hundred thirty-six thousand, nine hundred three".