1298898 has 12 divisors (see below), whose sum is σ = 2814318. Its totient is φ = 432960.

The previous prime is 1298887. The next prime is 1298909. The reversal of 1298898 is 8988921.

It is an interprime number because it is at equal distance from previous prime (1298887) and next prime (1298909).

It can be written as a sum of positive squares in only one way, i.e., 859329 + 439569 = 927^2 + 663^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 36063 + ... + 36098.

2^1298898 is an apocalyptic number.

1298898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1298898 is an abundant number, since it is smaller than the sum of its proper divisors (1515420).

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

1298898 is a wasteful number, since it uses less digits than its factorization.

1298898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72169 (or 72166 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 1298898 is about 1139.6920636733. The cubic root of 1298898 is about 109.1084407430.

The spelling of 1298898 in words is "one million, two hundred ninety-eight thousand, eight hundred ninety-eight".