819237941 has 4 divisors (see below), whose sum is σ = 820512672. Its totient is φ = 817963212.

The previous prime is 819237929. The next prime is 819237949. The reversal of 819237941 is 149732918.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 819237941 - 2¹⁰ = 819236917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 819237892 and 819237901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819237949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636401 + ... + 637686.

It is an arithmetic number, because the mean of its divisors is an integer number (205128168).

Almost surely, 2^819237941 is an apocalyptic number.

It is an amenable number.

819237941 is a deficient number, since it is larger than the sum of its proper divisors (1274731).

819237941 is a wasteful number, since it uses less digits than its factorization.

819237941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274730.

The product of its digits is 108864, while the sum is 44.

The square root of 819237941 is about 28622.3329063164. The cubic root of 819237941 is about 935.7001213381.

The spelling of 819237941 in words is "eight hundred nineteen million, two hundred thirty-seven thousand, nine hundred forty-one".