98961439 has 2 divisors, whose sum is σ = 98961440. Its totient is φ = 98961438.

The previous prime is 98961409. The next prime is 98961449. The reversal of 98961439 is 93416989.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98961439 - 2¹⁹ = 98437151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98961392 and 98961401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98961409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49480719 + 49480720.

It is an arithmetic number, because the mean of its divisors is an integer number (49480720).

Almost surely, 2^98961439 is an apocalyptic number.

98961439 is a deficient number, since it is larger than the sum of its proper divisors (1).

98961439 is an equidigital number, since it uses as much as digits as its factorization.

98961439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 49.

The square root of 98961439 is about 9947.9364191776. The cubic root of 98961439 is about 462.5464305955.

The spelling of 98961439 in words is "ninety-eight million, nine hundred sixty-one thousand, four hundred thirty-nine".