64421103 has 16 divisors (see below), whose sum is σ = 88302080. Its totient is φ = 41760576.

The previous prime is 64421101. The next prime is 64421111. The reversal of 64421103 is 30112446.

It is not a de Polignac number, because 64421103 - 2¹ = 64421101 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 64421103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64421101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13851 + ... + 17907.

It is an arithmetic number, because the mean of its divisors is an integer number (5518880).

Almost surely, 2^64421103 is an apocalyptic number.

64421103 is a deficient number, since it is larger than the sum of its proper divisors (23880977).

64421103 is a wasteful number, since it uses less digits than its factorization.

64421103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 64421103 is about 8026.2757864404. The cubic root of 64421103 is about 400.8753807904.

Adding to 64421103 its reverse (30112446), we get a palindrome (94533549).

The spelling of 64421103 in words is "sixty-four million, four hundred twenty-one thousand, one hundred three".