1796949421 has 2 divisors, whose sum is σ = 1796949422. Its totient is φ = 1796949420.

The previous prime is 1796949409. The next prime is 1796949439. The reversal of 1796949421 is 1249496971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985269321 + 811680100 = 31389^2 + 28490^2 .

It is an emirp because it is prime and its reverse (1249496971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1796949421 - 2¹⁹ = 1796425133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1796949821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898474710 + 898474711.

It is an arithmetic number, because the mean of its divisors is an integer number (898474711).

Almost surely, 2^1796949421 is an apocalyptic number.

It is an amenable number.

1796949421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1796949421 is an equidigital number, since it uses as much as digits as its factorization.

1796949421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 1796949421 is about 42390.4402076695. The cubic root of 1796949421 is about 1215.7528165495.

The spelling of 1796949421 in words is "one billion, seven hundred ninety-six million, nine hundred forty-nine thousand, four hundred twenty-one".