898778 has 8 divisors (see below), whose sum is σ = 1361568. Its totient is φ = 444924.

The previous prime is 898769. The next prime is 898787. The reversal of 898778 is 877898.

It is an interprime number because it is at equal distance from previous prime (898769) and next prime (898787).

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

It is a nialpdrome in base 8.

It is an unprimeable 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, 1976 + ... + 2387.

It is an arithmetic number, because the mean of its divisors is an integer number (170196).

2⁸⁹⁸⁷⁷⁸ is an apocalyptic number.

898778 is a deficient number, since it is larger than the sum of its proper divisors (462790).

898778 is a wasteful number, since it uses less digits than its factorization.

898778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468.

The product of its digits is 225792, while the sum is 47.

The square root of 898778 is about 948.0390287325. The cubic root of 898778 is about 96.5052213342.

The spelling of 898778 in words is "eight hundred ninety-eight thousand, seven hundred seventy-eight".