64709903 has 2 divisors, whose sum is σ = 64709904. Its totient is φ = 64709902.

The previous prime is 64709899. The next prime is 64709923. The reversal of 64709903 is 30990746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64709903 - 2² = 64709899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64709923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32354951 + 32354952.

It is an arithmetic number, because the mean of its divisors is an integer number (32354952).

Almost surely, 2^64709903 is an apocalyptic number.

64709903 is a deficient number, since it is larger than the sum of its proper divisors (1).

64709903 is an equidigital number, since it uses as much as digits as its factorization.

64709903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 64709903 is about 8044.2465775236. The cubic root of 64709903 is about 401.4735296934.

The spelling of 64709903 in words is "sixty-four million, seven hundred nine thousand, nine hundred three".