99785667 has 8 divisors (see below), whose sum is σ = 134225424. Its totient is φ = 65934848.

The previous prime is 99785657. The next prime is 99785669. The reversal of 99785667 is 76658799.

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

It is a cyclic number.

It is not a de Polignac number, because 99785667 - 2⁶ = 99785603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99785669) 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, 146838 + ... + 147515.

It is an arithmetic number, because the mean of its divisors is an integer number (16778178).

Almost surely, 2^99785667 is an apocalyptic number.

99785667 is a deficient number, since it is larger than the sum of its proper divisors (34439757).

99785667 is a wasteful number, since it uses less digits than its factorization.

99785667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294469.

The product of its digits is 5715360, while the sum is 57.

The square root of 99785667 is about 9989.2776015085. The cubic root of 99785667 is about 463.8270309387.

The spelling of 99785667 in words is "ninety-nine million, seven hundred eighty-five thousand, six hundred sixty-seven".