98981810 has 32 divisors (see below), whose sum is σ = 182476800. Its totient is φ = 38646720.

The previous prime is 98981801. The next prime is 98981819. The reversal of 98981810 is 1818989.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (98981801) and next prime (98981819).

It is a super-2 number, since 2×98981810² = 19594797421752200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (98981819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76751 + ... + 78029.

It is an arithmetic number, because the mean of its divisors is an integer number (5702400).

Almost surely, 2^98981810 is an apocalyptic number.

98981810 is a deficient number, since it is larger than the sum of its proper divisors (83494990).

98981810 is a wasteful number, since it uses less digits than its factorization.

98981810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466.

The product of its (nonzero) digits is 41472, while the sum is 44.

The square root of 98981810 is about 9948.9602471816. The cubic root of 98981810 is about 462.5781664817.

The spelling of 98981810 in words is "ninety-eight million, nine hundred eighty-one thousand, eight hundred ten".