899678 has 8 divisors (see below), whose sum is σ = 1453368. Its totient is φ = 415224.

The previous prime is 899671. The next prime is 899681. The reversal of 899678 is 876998.

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 (899671) by changing a digit.

899678 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17276 + ... + 17327.

It is an arithmetic number, because the mean of its divisors is an integer number (181671).

2⁸⁹⁹⁶⁷⁸ is an apocalyptic number.

899678 is a deficient number, since it is larger than the sum of its proper divisors (553690).

899678 is a wasteful number, since it uses less digits than its factorization.

899678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34618.

The product of its digits is 217728, while the sum is 47.

The square root of 899678 is about 948.5135739672. The cubic root of 899678 is about 96.5374227322.

The spelling of 899678 in words is "eight hundred ninety-nine thousand, six hundred seventy-eight".