98783939 has 2 divisors, whose sum is σ = 98783940. Its totient is φ = 98783938.

The previous prime is 98783921. The next prime is 98783941. The reversal of 98783939 is 93938789.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98783939 is a prime.

It is a Sophie Germain prime.

Together with 98783941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98783999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49391969 + 49391970.

It is an arithmetic number, because the mean of its divisors is an integer number (49391970).

Almost surely, 2^98783939 is an apocalyptic number.

98783939 is a deficient number, since it is larger than the sum of its proper divisors (1).

98783939 is an equidigital number, since it uses as much as digits as its factorization.

98783939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 56.

The square root of 98783939 is about 9939.0109668920. The cubic root of 98783939 is about 462.2697196933.

The spelling of 98783939 in words is "ninety-eight million, seven hundred eighty-three thousand, nine hundred thirty-nine".