89720723 has 8 divisors (see below), whose sum is σ = 94905888. Its totient is φ = 84642624.

The previous prime is 89720711. The next prime is 89720731. The reversal of 89720723 is 32702798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89720723 - 2¹⁶ = 89655187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89720753) 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, 25040 + ... + 28397.

It is an arithmetic number, because the mean of its divisors is an integer number (11863236).

Almost surely, 2^89720723 is an apocalyptic number.

89720723 is a deficient number, since it is larger than the sum of its proper divisors (5185165).

89720723 is a wasteful number, since it uses less digits than its factorization.

89720723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53533.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 89720723 is about 9472.1023537544. The cubic root of 89720723 is about 447.6764561129.

The spelling of 89720723 in words is "eighty-nine million, seven hundred twenty thousand, seven hundred twenty-three".