49712321 has 4 divisors (see below), whose sum is σ = 49845972. Its totient is φ = 49578672.

The previous prime is 49712317. The next prime is 49712329. The reversal of 49712321 is 12321794.

49712321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23814400 + 25897921 = 4880^2 + 5089^2 .

It is a cyclic number.

It is not a de Polignac number, because 49712321 - 2² = 49712317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49712329) 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 3 ways as a sum of consecutive naturals, for example, 66266 + ... + 67011.

It is an arithmetic number, because the mean of its divisors is an integer number (12461493).

Almost surely, 2^49712321 is an apocalyptic number.

It is an amenable number.

49712321 is a deficient number, since it is larger than the sum of its proper divisors (133651).

49712321 is a wasteful number, since it uses less digits than its factorization.

49712321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133650.

The product of its digits is 3024, while the sum is 29.

The square root of 49712321 is about 7050.6964904185. The cubic root of 49712321 is about 367.6952447953.

The spelling of 49712321 in words is "forty-nine million, seven hundred twelve thousand, three hundred twenty-one".