64547441 has 8 divisors (see below), whose sum is σ = 74140800. Its totient is φ = 55047168.

The previous prime is 64547437. The next prime is 64547471. The reversal of 64547441 is 14474546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64547441 - 2² = 64547437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64547401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21776 + ... + 24561.

It is an arithmetic number, because the mean of its divisors is an integer number (9267600).

Almost surely, 2^64547441 is an apocalyptic number.

It is an amenable number.

64547441 is a deficient number, since it is larger than the sum of its proper divisors (9593359).

64547441 is a wasteful number, since it uses less digits than its factorization.

64547441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46543.

The product of its digits is 53760, while the sum is 35.

The square root of 64547441 is about 8034.1422068569. The cubic root of 64547441 is about 401.1372655864.

The spelling of 64547441 in words is "sixty-four million, five hundred forty-seven thousand, four hundred forty-one".