99009723 has 8 divisors (see below), whose sum is σ = 132202000. Its totient is φ = 65911968.

The previous prime is 99009721. The next prime is 99009727. The reversal of 99009723 is 32790099.

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

It is not a de Polignac number, because 99009723 - 2¹ = 99009721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99009721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21148 + ... + 25401.

It is an arithmetic number, because the mean of its divisors is an integer number (16525250).

Almost surely, 2^99009723 is an apocalyptic number.

99009723 is a deficient number, since it is larger than the sum of its proper divisors (33192277).

99009723 is a wasteful number, since it uses less digits than its factorization.

99009723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47261.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 99009723 is about 9950.3629582041. The cubic root of 99009723 is about 462.6216449444.

The spelling of 99009723 in words is "ninety-nine million, nine thousand, seven hundred twenty-three".