64434903 has 32 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 37973760.

The previous prime is 64434893. The next prime is 64434911. The reversal of 64434903 is 30943446.

It is a de Polignac number, because none of the positive numbers 2^k-64434903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64434943) 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 31 ways as a sum of consecutive naturals, for example, 94000 + ... + 94682.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 2^64434903 is an apocalyptic number.

64434903 is a deficient number, since it is larger than the sum of its proper divisors (32091177).

64434903 is a wasteful number, since it uses less digits than its factorization.

64434903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 64434903 is about 8027.1354168221. The cubic root of 64434903 is about 400.9040033225.

The spelling of 64434903 in words is "sixty-four million, four hundred thirty-four thousand, nine hundred three".