98611992 has 80 divisors (see below), whose sum is σ = 285172800. Its totient is φ = 31803840.

The previous prime is 98611991. The next prime is 98612009. The reversal of 98611992 is 29911689.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98611991) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17634 + ... + 22542.

It is an arithmetic number, because the mean of its divisors is an integer number (3564660).

Almost surely, 2^98611992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98611992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142586400).

98611992 is an abundant number, since it is smaller than the sum of its proper divisors (186560808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98611992 is a wasteful number, since it uses less digits than its factorization.

98611992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958 (or 4945 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 98611992 is about 9930.3570932772. The cubic root of 98611992 is about 462.0013492961.

The spelling of 98611992 in words is "ninety-eight million, six hundred eleven thousand, nine hundred ninety-two".