98432981 has 8 divisors (see below), whose sum is σ = 100817304. Its totient is φ = 96076800.

The previous prime is 98432969. The next prime is 98433011. The reversal of 98432981 is 18923489.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28793956 + 69639025 = 5366^2 + 8345^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 98432981 - 2¹⁸ = 98170837 is a prime.

It is a super-2 number, since 2×98432981² = 19378103497092722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98432911) 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, 131 + ... + 14031.

It is an arithmetic number, because the mean of its divisors is an integer number (12602163).

Almost surely, 2^98432981 is an apocalyptic number.

It is an amenable number.

98432981 is a deficient number, since it is larger than the sum of its proper divisors (2384323).

98432981 is a wasteful number, since it uses less digits than its factorization.

98432981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14071.

The product of its digits is 124416, while the sum is 44.

The square root of 98432981 is about 9921.3396776847. The cubic root of 98432981 is about 461.7216219311.

The spelling of 98432981 in words is "ninety-eight million, four hundred thirty-two thousand, nine hundred eighty-one".