98643992 has 16 divisors (see below), whose sum is σ = 187563600. Its totient is φ = 48627040.

The previous prime is 98643989. The next prime is 98643997. The reversal of 98643992 is 29934689.

It is a self number, because there is not a number n which added to its sum of digits gives 98643992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98643997) 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, 86267 + ... + 87402.

It is an arithmetic number, because the mean of its divisors is an integer number (11722725).

Almost surely, 2^98643992 is an apocalyptic number.

It is an amenable number.

98643992 is a deficient number, since it is larger than the sum of its proper divisors (88919608).

98643992 is a wasteful number, since it uses less digits than its factorization.

98643992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173746 (or 173742 counting only the distinct ones).

The product of its digits is 839808, while the sum is 50.

The square root of 98643992 is about 9931.9681835979. The cubic root of 98643992 is about 462.0513176756.

The spelling of 98643992 in words is "ninety-eight million, six hundred forty-three thousand, nine hundred ninety-two".