983403943 has 2 divisors, whose sum is σ = 983403944. Its totient is φ = 983403942.

The previous prime is 983403877. The next prime is 983403989. The reversal of 983403943 is 349304389.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 983403943 - 2⁹ = 983403431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 983403943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983404943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491701971 + 491701972.

It is an arithmetic number, because the mean of its divisors is an integer number (491701972).

Almost surely, 2^983403943 is an apocalyptic number.

983403943 is a deficient number, since it is larger than the sum of its proper divisors (1).

983403943 is an equidigital number, since it uses as much as digits as its factorization.

983403943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 983403943 is about 31359.2720419336. The cubic root of 983403943 is about 994.4370924426.

The spelling of 983403943 in words is "nine hundred eighty-three million, four hundred three thousand, nine hundred forty-three".