98944581 has 8 divisors (see below), whose sum is σ = 133207360. Its totient is φ = 65322432.

The previous prime is 98944561. The next prime is 98944589. The reversal of 98944581 is 18544989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-98944581 is a prime.

It is a super-2 number, since 2×98944581² = 19580060218531122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98944581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98944589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159796 + ... + 160413.

It is an arithmetic number, because the mean of its divisors is an integer number (16650920).

Almost surely, 2^98944581 is an apocalyptic number.

It is an amenable number.

98944581 is a deficient number, since it is larger than the sum of its proper divisors (34262779).

98944581 is a wasteful number, since it uses less digits than its factorization.

98944581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320315.

The product of its digits is 414720, while the sum is 48.

The square root of 98944581 is about 9947.0890716832. The cubic root of 98944581 is about 462.5201643023.

The spelling of 98944581 in words is "ninety-eight million, nine hundred forty-four thousand, five hundred eighty-one".