1997962411 has 2 divisors, whose sum is σ = 1997962412. Its totient is φ = 1997962410.

The previous prime is 1997962403. The next prime is 1997962481. The reversal of 1997962411 is 1142697991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1997962411 - 2³ = 1997962403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1997962481) 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, 998981205 + 998981206.

It is an arithmetic number, because the mean of its divisors is an integer number (998981206).

Almost surely, 2^1997962411 is an apocalyptic number.

1997962411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1997962411 is an equidigital number, since it uses as much as digits as its factorization.

1997962411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 49.

The square root of 1997962411 is about 44698.5728071937. The cubic root of 1997962411 is about 1259.4930376311.

The spelling of 1997962411 in words is "one billion, nine hundred ninety-seven million, nine hundred sixty-two thousand, four hundred eleven".