67648441 has 4 divisors (see below), whose sum is σ = 77312512. Its totient is φ = 57984372.

The previous prime is 67648429. The next prime is 67648447. The reversal of 67648441 is 14484676.

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 67648441 - 2⁹ = 67647929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67648394 and 67648403.

It is not an unprimeable number, because it can be changed into a prime (67648447) 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, 4832025 + ... + 4832038.

It is an arithmetic number, because the mean of its divisors is an integer number (19328128).

Almost surely, 2^67648441 is an apocalyptic number.

It is an amenable number.

67648441 is a deficient number, since it is larger than the sum of its proper divisors (9664071).

67648441 is an equidigital number, since it uses as much as digits as its factorization.

67648441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664070.

The product of its digits is 129024, while the sum is 40.

The square root of 67648441 is about 8224.8672329710. The cubic root of 67648441 is about 407.4608912748.

The spelling of 67648441 in words is "sixty-seven million, six hundred forty-eight thousand, four hundred forty-one".