98782819 has 2 divisors, whose sum is σ = 98782820. Its totient is φ = 98782818.

The previous prime is 98782793. The next prime is 98782829. The reversal of 98782819 is 91828789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98782819 - 2¹⁵ = 98750051 is a prime.

It is a super-2 number, since 2×98782819² = 19516090659173522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98782829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49391409 + 49391410.

It is an arithmetic number, because the mean of its divisors is an integer number (49391410).

Almost surely, 2^98782819 is an apocalyptic number.

98782819 is a deficient number, since it is larger than the sum of its proper divisors (1).

98782819 is an equidigital number, since it uses as much as digits as its factorization.

98782819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 52.

The square root of 98782819 is about 9938.9546230979. The cubic root of 98782819 is about 462.2679726345.

The spelling of 98782819 in words is "ninety-eight million, seven hundred eighty-two thousand, eight hundred nineteen".