98783999 has 2 divisors, whose sum is σ = 98784000. Its totient is φ = 98783998.

The previous prime is 98783981. The next prime is 98784001. The reversal of 98783999 is 99938789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98783999 - 2¹² = 98779903 is a prime.

Together with 98784001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98783939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49391999 + 49392000.

It is an arithmetic number, because the mean of its divisors is an integer number (49392000).

Almost surely, 2^98783999 is an apocalyptic number.

98783999 is a deficient number, since it is larger than the sum of its proper divisors (1).

98783999 is an equidigital number, since it uses as much as digits as its factorization.

98783999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 62.

The square root of 98783999 is about 9939.0139853006. The cubic root of 98783999 is about 462.2698132854.

The spelling of 98783999 in words is "ninety-eight million, seven hundred eighty-three thousand, nine hundred ninety-nine".