98434909 has 2 divisors, whose sum is σ = 98434910. Its totient is φ = 98434908.

The previous prime is 98434867. The next prime is 98434933. The reversal of 98434909 is 90943489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80820100 + 17614809 = 8990^2 + 4197^2 .

It is a cyclic number.

It is not a de Polignac number, because 98434909 - 2⁷ = 98434781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98434949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49217454 + 49217455.

It is an arithmetic number, because the mean of its divisors is an integer number (49217455).

Almost surely, 2^98434909 is an apocalyptic number.

It is an amenable number.

98434909 is a deficient number, since it is larger than the sum of its proper divisors (1).

98434909 is an equidigital number, since it uses as much as digits as its factorization.

98434909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 98434909 is about 9921.4368415064. The cubic root of 98434909 is about 461.7246364813.

The spelling of 98434909 in words is "ninety-eight million, four hundred thirty-four thousand, nine hundred nine".