98919972 has 36 divisors (see below), whose sum is σ = 250486236. Its totient is φ = 32915520.

The previous prime is 98919967. The next prime is 98920013. The reversal of 98919972 is 27991989.

It can be written as a sum of positive squares in 2 ways, for example, as 62631396 + 36288576 = 7914^2 + 6024^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21718 + ... + 25874.

It is an arithmetic number, because the mean of its divisors is an integer number (6957951).

Almost surely, 2^98919972 is an apocalyptic number.

It is an amenable number.

98919972 is an abundant number, since it is smaller than the sum of its proper divisors (151566264).

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

98919972 is a wasteful number, since it uses less digits than its factorization.

98919972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828 (or 4823 counting only the distinct ones).

The product of its digits is 734832, while the sum is 54.

The square root of 98919972 is about 9945.8519997032. The cubic root of 98919972 is about 462.4818158909.

The spelling of 98919972 in words is "ninety-eight million, nine hundred nineteen thousand, nine hundred seventy-two".