48943721 has 2 divisors, whose sum is σ = 48943722. Its totient is φ = 48943720.

The previous prime is 48943717. The next prime is 48943723. The reversal of 48943721 is 12734984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34351321 + 14592400 = 5861^2 + 3820^2 .

It is a cyclic number.

It is not a de Polignac number, because 48943721 - 2² = 48943717 is a prime.

It is a Sophie Germain prime.

Together with 48943723, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (48943723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24471860 + 24471861.

It is an arithmetic number, because the mean of its divisors is an integer number (24471861).

Almost surely, 2^48943721 is an apocalyptic number.

It is an amenable number.

48943721 is a deficient number, since it is larger than the sum of its proper divisors (1).

48943721 is an equidigital number, since it uses as much as digits as its factorization.

48943721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 48943721 is about 6995.9789164920. The cubic root of 48943721 is about 365.7904206884.

The spelling of 48943721 in words is "forty-eight million, nine hundred forty-three thousand, seven hundred twenty-one".