99988723 has 8 divisors (see below), whose sum is σ = 104982480. Its totient is φ = 95098080.

The previous prime is 99988649. The next prime is 99988753. The reversal of 99988723 is 32788999.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99988723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99988753) 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, 23788 + ... + 27673.

It is an arithmetic number, because the mean of its divisors is an integer number (13122810).

Almost surely, 2^99988723 is an apocalyptic number.

99988723 is a deficient number, since it is larger than the sum of its proper divisors (4993757).

99988723 is a wasteful number, since it uses less digits than its factorization.

99988723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51557.

The product of its digits is 1959552, while the sum is 55.

The square root of 99988723 is about 9999.4361341028. The cubic root of 99988723 is about 464.1414349730.

It can be divided in two parts, 9998 and 8723, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 99988723 in words is "ninety-nine million, nine hundred eighty-eight thousand, seven hundred twenty-three".