64853403 has 16 divisors (see below), whose sum is σ = 91614720. Its totient is φ = 40693536.

The previous prime is 64853389. The next prime is 64853447. The reversal of 64853403 is 30435846.

It is a de Polignac number, because none of the positive numbers 2^k-64853403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64853473) by changing a digit.

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, 5326 + ... + 12572.

It is an arithmetic number, because the mean of its divisors is an integer number (5725920).

Almost surely, 2^64853403 is an apocalyptic number.

64853403 is a deficient number, since it is larger than the sum of its proper divisors (26761317).

64853403 is a wasteful number, since it uses less digits than its factorization.

64853403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7426.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 64853403 is about 8053.1610563803. The cubic root of 64853403 is about 401.7700784185.

It can be divided in two parts, 64853 and 403, that added together give a palindrome (65256).

The spelling of 64853403 in words is "sixty-four million, eight hundred fifty-three thousand, four hundred three".