998070 has 64 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 235008.

The previous prime is 998069. The next prime is 998071. The reversal of 998070 is 70899.

It is an interprime number because it is at equal distance from previous prime (998069) and next prime (998071).

It is a super-2 number, since 2×998070² = 1992287449800, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998070.

It is not an unprimeable number, because it can be changed into a prime (998071) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9639 + ... + 9741.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2⁹⁹⁸⁰⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347840).

998070 is an abundant number, since it is smaller than the sum of its proper divisors (1697610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998070 is a wasteful number, since it uses less digits than its factorization.

998070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 998070 is about 999.0345339376. The cubic root of 998070 is about 99.9356252345.

The spelling of 998070 in words is "nine hundred ninety-eight thousand, seventy".