99949729 has 8 divisors (see below), whose sum is σ = 110664288. Its totient is φ = 89506560.

The previous prime is 99949711. The next prime is 99949771. The reversal of 99949729 is 92794999.

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

It is not a de Polignac number, because 99949729 - 2⁷ = 99949601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99949229) 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, 67072 + ... + 68545.

It is an arithmetic number, because the mean of its divisors is an integer number (13833036).

Almost surely, 2^99949729 is an apocalyptic number.

It is an amenable number.

99949729 is a deficient number, since it is larger than the sum of its proper divisors (10714559).

99949729 is a wasteful number, since it uses less digits than its factorization.

99949729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135695.

The product of its digits is 3306744, while the sum is 58.

The square root of 99949729 is about 9997.4861340239. The cubic root of 99949729 is about 464.0810912201.

The spelling of 99949729 in words is "ninety-nine million, nine hundred forty-nine thousand, seven hundred twenty-nine".