197962783 has 2 divisors, whose sum is σ = 197962784. Its totient is φ = 197962782.

The previous prime is 197962757. The next prime is 197962799. The reversal of 197962783 is 387269791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197962783 - 2²⁵ = 164408351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197962783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197962183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98981391 + 98981392.

It is an arithmetic number, because the mean of its divisors is an integer number (98981392).

Almost surely, 2^197962783 is an apocalyptic number.

197962783 is a deficient number, since it is larger than the sum of its proper divisors (1).

197962783 is an equidigital number, since it uses as much as digits as its factorization.

197962783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 52.

The square root of 197962783 is about 14069.9247688110. The cubic root of 197962783 is about 582.8111477849.

The spelling of 197962783 in words is "one hundred ninety-seven million, nine hundred sixty-two thousand, seven hundred eighty-three".