64903233 has 4 divisors (see below), whose sum is σ = 86537648. Its totient is φ = 43268820.

The previous prime is 64903231. The next prime is 64903249. The reversal of 64903233 is 33230946.

64903233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64903233 - 2¹ = 64903231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64903233.

It is not an unprimeable number, because it can be changed into a prime (64903231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10817203 + ... + 10817208.

It is an arithmetic number, because the mean of its divisors is an integer number (21634412).

Almost surely, 2^64903233 is an apocalyptic number.

It is an amenable number.

64903233 is a deficient number, since it is larger than the sum of its proper divisors (21634415).

64903233 is a wasteful number, since it uses less digits than its factorization.

64903233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21634414.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 64903233 is about 8056.2542785093. The cubic root of 64903233 is about 401.8729518571.

The spelling of 64903233 in words is "sixty-four million, nine hundred three thousand, two hundred thirty-three".