1048793021 has 2 divisors, whose sum is σ = 1048793022. Its totient is φ = 1048793020.

The previous prime is 1048792993. The next prime is 1048793093. The reversal of 1048793021 is 1203978401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993825625 + 54967396 = 31525^2 + 7414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1048793021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1048763021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524396510 + 524396511.

It is an arithmetic number, because the mean of its divisors is an integer number (524396511).

Almost surely, 2^1048793021 is an apocalyptic number.

It is an amenable number.

1048793021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048793021 is an equidigital number, since it uses as much as digits as its factorization.

1048793021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1048793021 is about 32385.0740465419. The cubic root of 1048793021 is about 1016.0067569998.

The spelling of 1048793021 in words is "one billion, forty-eight million, seven hundred ninety-three thousand, twenty-one".