98356813 has 2 divisors, whose sum is σ = 98356814. Its totient is φ = 98356812.

The previous prime is 98356799. The next prime is 98356847. The reversal of 98356813 is 31865389.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96471684 + 1885129 = 9822^2 + 1373^2 .

It is a cyclic number.

It is not a de Polignac number, because 98356813 - 2⁹ = 98356301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98356813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98356873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49178406 + 49178407.

It is an arithmetic number, because the mean of its divisors is an integer number (49178407).

Almost surely, 2^98356813 is an apocalyptic number.

It is an amenable number.

98356813 is a deficient number, since it is larger than the sum of its proper divisors (1).

98356813 is an equidigital number, since it uses as much as digits as its factorization.

98356813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 98356813 is about 9917.5003403075. The cubic root of 98356813 is about 461.6024969278.

The spelling of 98356813 in words is "ninety-eight million, three hundred fifty-six thousand, eight hundred thirteen".