197323783 has 2 divisors, whose sum is σ = 197323784. Its totient is φ = 197323782.

The previous prime is 197323757. The next prime is 197323793. The reversal of 197323783 is 387323791.

197323783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (387323791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197323783 - 2²¹ = 195226631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197323733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98661891 + 98661892.

It is an arithmetic number, because the mean of its divisors is an integer number (98661892).

Almost surely, 2^197323783 is an apocalyptic number.

197323783 is a deficient number, since it is larger than the sum of its proper divisors (1).

197323783 is an equidigital number, since it uses as much as digits as its factorization.

197323783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 43.

The square root of 197323783 is about 14047.1984039523. The cubic root of 197323783 is about 582.1833904814.

The spelling of 197323783 in words is "one hundred ninety-seven million, three hundred twenty-three thousand, seven hundred eighty-three".