64238403 has 4 divisors (see below), whose sum is σ = 85651208. Its totient is φ = 42825600.

The previous prime is 64238357. The next prime is 64238407. The reversal of 64238403 is 30483246.

64238403 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.

It is not a de Polignac number, because 64238403 - 2¹⁴ = 64222019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64238407) 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, 10706398 + ... + 10706403.

It is an arithmetic number, because the mean of its divisors is an integer number (21412802).

Almost surely, 2^64238403 is an apocalyptic number.

64238403 is a deficient number, since it is larger than the sum of its proper divisors (21412805).

64238403 is a wasteful number, since it uses less digits than its factorization.

64238403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21412804.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 64238403 is about 8014.8863373101. The cubic root of 64238403 is about 400.4960574798.

The spelling of 64238403 in words is "sixty-four million, two hundred thirty-eight thousand, four hundred three".