197913733 has 2 divisors, whose sum is σ = 197913734. Its totient is φ = 197913732.

The previous prime is 197913721. The next prime is 197913743. The reversal of 197913733 is 337319791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197739844 + 173889 = 14062^2 + 417^2 .

It is an emirp because it is prime and its reverse (337319791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197913733 - 2¹⁷ = 197782661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197913733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197913743) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98956866 + 98956867.

It is an arithmetic number, because the mean of its divisors is an integer number (98956867).

Almost surely, 2^197913733 is an apocalyptic number.

It is an amenable number.

197913733 is a deficient number, since it is larger than the sum of its proper divisors (1).

197913733 is an equidigital number, since it uses as much as digits as its factorization.

197913733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107163, while the sum is 43.

The square root of 197913733 is about 14068.1815811426. The cubic root of 197913733 is about 582.7630086890.

The spelling of 197913733 in words is "one hundred ninety-seven million, nine hundred thirteen thousand, seven hundred thirty-three".