48998821 has 2 divisors, whose sum is σ = 48998822. Its totient is φ = 48998820.

The previous prime is 48998797. The next prime is 48998897. The reversal of 48998821 is 12889984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28196100 + 20802721 = 5310^2 + 4561^2 .

It is a cyclic number.

It is not a de Polignac number, because 48998821 - 2⁹ = 48998309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48998021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24499410 + 24499411.

It is an arithmetic number, because the mean of its divisors is an integer number (24499411).

Almost surely, 2^48998821 is an apocalyptic number.

It is an amenable number.

48998821 is a deficient number, since it is larger than the sum of its proper divisors (1).

48998821 is an equidigital number, since it uses as much as digits as its factorization.

48998821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 49.

The square root of 48998821 is about 6999.9157852077. The cubic root of 48998821 is about 365.9276360662.

The spelling of 48998821 in words is "forty-eight million, nine hundred ninety-eight thousand, eight hundred twenty-one".