64539303 has 16 divisors (see below), whose sum is σ = 89720832. Its totient is φ = 41220000.

The previous prime is 64539283. The next prime is 64539313. The reversal of 64539303 is 30393546.

It is not a de Polignac number, because 64539303 - 2¹⁸ = 64277159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64539313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5958 + ... + 12828.

It is an arithmetic number, because the mean of its divisors is an integer number (5607552).

Almost surely, 2^64539303 is an apocalyptic number.

64539303 is a deficient number, since it is larger than the sum of its proper divisors (25181529).

64539303 is a wasteful number, since it uses less digits than its factorization.

64539303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006.

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 64539303 is about 8033.6357273653. The cubic root of 64539303 is about 401.1204067086.

The spelling of 64539303 in words is "sixty-four million, five hundred thirty-nine thousand, three hundred three".