98722091 has 8 divisors (see below), whose sum is σ = 106970640. Its totient is φ = 90567072.

The previous prime is 98722087. The next prime is 98722103. The reversal of 98722091 is 19022789.

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 98722091 - 2² = 98722087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98722291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21176 + ... + 25413.

It is an arithmetic number, because the mean of its divisors is an integer number (13371330).

Almost surely, 2^98722091 is an apocalyptic number.

98722091 is a deficient number, since it is larger than the sum of its proper divisors (8248549).

98722091 is a wasteful number, since it uses less digits than its factorization.

98722091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46765.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 98722091 is about 9935.8991037550. The cubic root of 98722091 is about 462.1732248354.

The spelling of 98722091 in words is "ninety-eight million, seven hundred twenty-two thousand, ninety-one".