48347021 has 2 divisors, whose sum is σ = 48347022. Its totient is φ = 48347020.

The previous prime is 48347009. The next prime is 48347023. The reversal of 48347021 is 12074384.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 44521 = 6950^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 48347021 - 2⁶ = 48346957 is a prime.

Together with 48347023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48347023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24173510 + 24173511.

It is an arithmetic number, because the mean of its divisors is an integer number (24173511).

Almost surely, 2^48347021 is an apocalyptic number.

It is an amenable number.

48347021 is a deficient number, since it is larger than the sum of its proper divisors (1).

48347021 is an equidigital number, since it uses as much as digits as its factorization.

48347021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 48347021 is about 6953.2022119308. The cubic root of 48347021 is about 364.2978206042.

The spelling of 48347021 in words is "forty-eight million, three hundred forty-seven thousand, twenty-one".