98981956 has 24 divisors (see below), whose sum is σ = 188369496. Its totient is φ = 45319680.

The previous prime is 98981951. The next prime is 98981989. The reversal of 98981956 is 65918989.

It can be written as a sum of positive squares in 4 ways, for example, as 21013056 + 77968900 = 4584^2 + 8830^2 .

It is a super-2 number, since 2×98981956² = 19594855227171872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98981897 and 98981906.

It is not an unprimeable number, because it can be changed into a prime (98981951) 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, 17155 + ... + 22186.

It is an arithmetic number, because the mean of its divisors is an integer number (7848729).

Almost surely, 2^98981956 is an apocalyptic number.

It is an amenable number.

98981956 is a deficient number, since it is larger than the sum of its proper divisors (89387540).

98981956 is a wasteful number, since it uses less digits than its factorization.

98981956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39399 (or 39397 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 55.

The square root of 98981956 is about 9948.9675846291. The cubic root of 98981956 is about 462.5783939187.

The spelling of 98981956 in words is "ninety-eight million, nine hundred eighty-one thousand, nine hundred fifty-six".