19770941 has 2 divisors, whose sum is σ = 19770942. Its totient is φ = 19770940.

The previous prime is 19770937. The next prime is 19770967. The reversal of 19770941 is 14907791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 674041 = 4370^2 + 821^2 .

It is an emirp because it is prime and its reverse (14907791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19770941 - 2² = 19770937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 19770895 and 19770904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19770991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9885470 + 9885471.

It is an arithmetic number, because the mean of its divisors is an integer number (9885471).

Almost surely, 2^19770941 is an apocalyptic number.

It is an amenable number.

19770941 is a deficient number, since it is larger than the sum of its proper divisors (1).

19770941 is an equidigital number, since it uses as much as digits as its factorization.

19770941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 19770941 is about 4446.4526310307. The cubic root of 19770941 is about 270.4015105377.

The spelling of 19770941 in words is "nineteen million, seven hundred seventy thousand, nine hundred forty-one".