99620786 has 8 divisors (see below), whose sum is σ = 149474160. Its totient is φ = 49796068.

The previous prime is 99620767. The next prime is 99620789. The reversal of 99620786 is 68702699.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99620786.

It is not an unprimeable number, because it can be changed into a prime (99620789) 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, 7685 + ... + 16071.

It is an arithmetic number, because the mean of its divisors is an integer number (18684270).

Almost surely, 2^99620786 is an apocalyptic number.

99620786 is a deficient number, since it is larger than the sum of its proper divisors (49853374).

99620786 is a wasteful number, since it uses less digits than its factorization.

99620786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14328.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 99620786 is about 9981.0212904292. The cubic root of 99620786 is about 463.5714216660.

The spelling of 99620786 in words is "ninety-nine million, six hundred twenty thousand, seven hundred eighty-six".