64104481 has 4 divisors (see below), whose sum is σ = 73262272. Its totient is φ = 54946692.

The previous prime is 64104451. The next prime is 64104493. The reversal of 64104481 is 18440146.

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 a cyclic number.

It is not a de Polignac number, because 64104481 - 2¹³ = 64096289 is a prime.

It is a super-2 number, since 2×64104481² = 8218768968558722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64104421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4578885 + ... + 4578898.

It is an arithmetic number, because the mean of its divisors is an integer number (18315568).

Almost surely, 2^64104481 is an apocalyptic number.

It is an amenable number.

64104481 is a deficient number, since it is larger than the sum of its proper divisors (9157791).

64104481 is an equidigital number, since it uses as much as digits as its factorization.

64104481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9157790.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 64104481 is about 8006.5273995659. The cubic root of 64104481 is about 400.2175504081.

The spelling of 64104481 in words is "sixty-four million, one hundred four thousand, four hundred eighty-one".