98812709 has 2 divisors, whose sum is σ = 98812710. Its totient is φ = 98812708.

The previous prime is 98812699. The next prime is 98812729. The reversal of 98812709 is 90721889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93508900 + 5303809 = 9670^2 + 2303^2 .

It is a cyclic number.

It is not a de Polignac number, because 98812709 - 2⁸ = 98812453 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98812709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98812729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49406354 + 49406355.

It is an arithmetic number, because the mean of its divisors is an integer number (49406355).

Almost surely, 2^98812709 is an apocalyptic number.

It is an amenable number.

98812709 is a deficient number, since it is larger than the sum of its proper divisors (1).

98812709 is an equidigital number, since it uses as much as digits as its factorization.

98812709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 98812709 is about 9940.4581886350. The cubic root of 98812709 is about 462.3145927400.

The spelling of 98812709 in words is "ninety-eight million, eight hundred twelve thousand, seven hundred nine".