99860678 has 8 divisors (see below), whose sum is σ = 150022368.
Its totient is φ = 49853224.
The previous prime is 99860671. The next prime is 99860711. The reversal of 99860678 is 87606899.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (99860671) 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, 36926 + ... + 39537.
It is an arithmetic number, because the mean of its divisors is an integer number (18752796).
Almost surely, 299860678 is an apocalyptic number.
99860678 is the 5342-nd centered heptagonal number.
99860678 is a deficient number, since it is larger than the sum of its proper divisors (50161690).
99860678 is a wasteful number, since it uses less digits than its factorization.
99860678 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77118.
The product of its (nonzero) digits is 1306368, while the sum is 53.
The square root of 99860678 is about 9993.0314719809.
The cubic root of 99860678 is about 463.9432246971.
The spelling of 99860678 in words is "ninety-nine million, eight hundred sixty thousand, six hundred seventy-eight".