898822 has 4 divisors (see below), whose sum is σ = 1348236. Its totient is φ = 449410.

The previous prime is 898819. The next prime is 898823. The reversal of 898822 is 228898.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224704 + ... + 224707.

It is an arithmetic number, because the mean of its divisors is an integer number (337059).

2⁸⁹⁸⁸²² is an apocalyptic number.

898822 is a deficient number, since it is larger than the sum of its proper divisors (449414).

898822 is a wasteful number, since it uses less digits than its factorization.

898822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449413.

The product of its digits is 18432, while the sum is 37.

The square root of 898822 is about 948.0622342441. The cubic root of 898822 is about 96.5067961244.

It can be divided in two parts, 89 and 8822, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 898822 in words is "eight hundred ninety-eight thousand, eight hundred twenty-two".