98649797 has 2 divisors, whose sum is σ = 98649798. Its totient is φ = 98649796.

The previous prime is 98649773. The next prime is 98649823. The reversal of 98649797 is 79794689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97792321 + 857476 = 9889^2 + 926^2 .

It is a cyclic number.

It is not a de Polignac number, because 98649797 - 2⁸ = 98649541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98649497) 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, 49324898 + 49324899.

It is an arithmetic number, because the mean of its divisors is an integer number (49324899).

Almost surely, 2^98649797 is an apocalyptic number.

It is an amenable number.

98649797 is a deficient number, since it is larger than the sum of its proper divisors (1).

98649797 is an equidigital number, since it uses as much as digits as its factorization.

98649797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 59.

The square root of 98649797 is about 9932.2604174478. The cubic root of 98649797 is about 462.0603810939.

The spelling of 98649797 in words is "ninety-eight million, six hundred forty-nine thousand, seven hundred ninety-seven".