64490303 has 2 divisors, whose sum is σ = 64490304. Its totient is φ = 64490302.

The previous prime is 64490273. The next prime is 64490311. The reversal of 64490303 is 30309446.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64490303 - 2²⁴ = 47713087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64490003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32245151 + 32245152.

It is an arithmetic number, because the mean of its divisors is an integer number (32245152).

Almost surely, 2^64490303 is an apocalyptic number.

64490303 is a deficient number, since it is larger than the sum of its proper divisors (1).

64490303 is an equidigital number, since it uses as much as digits as its factorization.

64490303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 64490303 is about 8030.5854705619. The cubic root of 64490303 is about 401.0188671541.

Adding to 64490303 its reverse (30309446), we get a palindrome (94799749).

The spelling of 64490303 in words is "sixty-four million, four hundred ninety thousand, three hundred three".