64924441 has 4 divisors (see below), whose sum is σ = 64942900. Its totient is φ = 64905984.

The previous prime is 64924429. The next prime is 64924471. The reversal of 64924441 is 14442946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9734400 + 55190041 = 3120^2 + 7429^2 .

It is a cyclic number.

It is not a de Polignac number, because 64924441 - 2¹⁹ = 64400153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64924397 and 64924406.

It is not an unprimeable number, because it can be changed into a prime (64924421) 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, 2136 + ... + 11593.

It is an arithmetic number, because the mean of its divisors is an integer number (16235725).

Almost surely, 2^64924441 is an apocalyptic number.

It is an amenable number.

64924441 is a deficient number, since it is larger than the sum of its proper divisors (18459).

64924441 is a wasteful number, since it uses less digits than its factorization.

64924441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18458.

The product of its digits is 27648, while the sum is 34.

The square root of 64924441 is about 8057.5704154540. The cubic root of 64924441 is about 401.9167195453.

The spelling of 64924441 in words is "sixty-four million, nine hundred twenty-four thousand, four hundred forty-one".