98809723 has 4 divisors (see below), whose sum is σ = 98830368. Its totient is φ = 98789080.

The previous prime is 98809717. The next prime is 98809769. The reversal of 98809723 is 32790889.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98809723 - 2⁹ = 98809211 is a prime.

It is a super-2 number, since 2×98809723² = 19526722718673458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98809703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990 + ... + 14092.

It is an arithmetic number, because the mean of its divisors is an integer number (24707592).

Almost surely, 2^98809723 is an apocalyptic number.

98809723 is a deficient number, since it is larger than the sum of its proper divisors (20645).

98809723 is a wasteful number, since it uses less digits than its factorization.

98809723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20644.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 98809723 is about 9940.3079932163. The cubic root of 98809723 is about 462.3099358314.

The spelling of 98809723 in words is "ninety-eight million, eight hundred nine thousand, seven hundred twenty-three".