98011813 has 4 divisors (see below), whose sum is σ = 98963488. Its totient is φ = 97060140.

The previous prime is 98011759. The next prime is 98011831. The reversal of 98011813 is 31811089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31811089 = 59 ⋅539171.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98011813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98011843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475683 + ... + 475888.

It is an arithmetic number, because the mean of its divisors is an integer number (24740872).

Almost surely, 2^98011813 is an apocalyptic number.

It is an amenable number.

98011813 is a deficient number, since it is larger than the sum of its proper divisors (951675).

98011813 is a wasteful number, since it uses less digits than its factorization.

98011813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951674.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 98011813 is about 9900.0915652331. The cubic root of 98011813 is about 461.0621533200.

The spelling of 98011813 in words is "ninety-eight million, eleven thousand, eight hundred thirteen".