49664321 has 8 divisors (see below), whose sum is σ = 57088704. Its totient is φ = 42322320.

The previous prime is 49664317. The next prime is 49664333. The reversal of 49664321 is 12346694.

49664321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 49664321 - 2² = 49664317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49661321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19295 + ... + 21716.

It is an arithmetic number, because the mean of its divisors is an integer number (7136088).

Almost surely, 2^49664321 is an apocalyptic number.

It is an amenable number.

49664321 is a deficient number, since it is larger than the sum of its proper divisors (7424383).

49664321 is a wasteful number, since it uses less digits than its factorization.

49664321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41191.

The product of its digits is 31104, while the sum is 35.

The square root of 49664321 is about 7047.2917493176. The cubic root of 49664321 is about 367.5768633095.

The spelling of 49664321 in words is "forty-nine million, six hundred sixty-four thousand, three hundred twenty-one".