98897749 has 2 divisors, whose sum is σ = 98897750. Its totient is φ = 98897748.

The previous prime is 98897741. The next prime is 98897759. The reversal of 98897749 is 94779889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52562500 + 46335249 = 7250^2 + 6807^2 .

It is a cyclic number.

It is not a de Polignac number, because 98897749 - 2³ = 98897741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98897741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49448874 + 49448875.

It is an arithmetic number, because the mean of its divisors is an integer number (49448875).

Almost surely, 2^98897749 is an apocalyptic number.

It is an amenable number.

98897749 is a deficient number, since it is larger than the sum of its proper divisors (1).

98897749 is an equidigital number, since it uses as much as digits as its factorization.

98897749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 61.

The square root of 98897749 is about 9944.7347375383. The cubic root of 98897749 is about 462.4471801379.

The spelling of 98897749 in words is "ninety-eight million, eight hundred ninety-seven thousand, seven hundred forty-nine".