898423819 has 4 divisors (see below), whose sum is σ = 902984544. Its totient is φ = 893863096.

The previous prime is 898423817. The next prime is 898423831. The reversal of 898423819 is 918324898.

898423819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 898423819 - 2¹ = 898423817 is a prime.

It is a super-2 number, since 2×898423819² = 1614330717093089522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (898423817) 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, 2280067 + ... + 2280460.

It is an arithmetic number, because the mean of its divisors is an integer number (225746136).

Almost surely, 2^898423819 is an apocalyptic number.

898423819 is a deficient number, since it is larger than the sum of its proper divisors (4560725).

898423819 is a wasteful number, since it uses less digits than its factorization.

898423819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560724.

The product of its digits is 995328, while the sum is 52.

The square root of 898423819 is about 29973.7188049798. The cubic root of 898423819 is about 964.9254308044.

The spelling of 898423819 in words is "eight hundred ninety-eight million, four hundred twenty-three thousand, eight hundred nineteen".