99717742 has 8 divisors (see below), whose sum is σ = 156080016. Its totient is φ = 47691072.

The previous prime is 99717721. The next prime is 99717749. The reversal of 99717742 is 24771799.

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

It is a super-4 number, since 4×99717742⁴ (a number of 33 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 2167777 = 99717742 / (9 + 9 + 7 + 1 + 7 + 7 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 99717692 and 99717701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99717749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083843 + ... + 1083934.

It is an arithmetic number, because the mean of its divisors is an integer number (19510002).

Almost surely, 2^99717742 is an apocalyptic number.

99717742 is a deficient number, since it is larger than the sum of its proper divisors (56362274).

99717742 is a wasteful number, since it uses less digits than its factorization.

99717742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167802.

The product of its digits is 222264, while the sum is 46.

The square root of 99717742 is about 9985.8771272232. The cubic root of 99717742 is about 463.7217633072.

The spelling of 99717742 in words is "ninety-nine million, seven hundred seventeen thousand, seven hundred forty-two".