64938835 has 16 divisors (see below), whose sum is σ = 84714336. Its totient is φ = 47501568.

The previous prime is 64938817. The next prime is 64938847. The reversal of 64938835 is 53883946.

It is a cyclic number.

It is not a de Polignac number, because 64938835 - 2⁹ = 64938323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2287 + ... + 11623.

It is an arithmetic number, because the mean of its divisors is an integer number (5294646).

Almost surely, 2^64938835 is an apocalyptic number.

64938835 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64938835 is a deficient number, since it is larger than the sum of its proper divisors (19775501).

64938835 is a wasteful number, since it uses less digits than its factorization.

64938835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462.

The product of its digits is 622080, while the sum is 46.

The square root of 64938835 is about 8058.4635632359. The cubic root of 64938835 is about 401.9464195150.

The spelling of 64938835 in words is "sixty-four million, nine hundred thirty-eight thousand, eight hundred thirty-five".