1297898 has 8 divisors (see below), whose sum is σ = 2224992. Its totient is φ = 556236.

The previous prime is 1297873. The next prime is 1297927. The reversal of 1297898 is 8987921.

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

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, 46340 + ... + 46367.

It is an arithmetic number, because the mean of its divisors is an integer number (278124).

2^1297898 is an apocalyptic number.

1297898 is a deficient number, since it is larger than the sum of its proper divisors (927094).

1297898 is an equidigital number, since it uses as much as digits as its factorization.

1297898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92716.

The product of its digits is 72576, while the sum is 44.

The square root of 1297898 is about 1139.2532642042. The cubic root of 1297898 is about 109.0804332954.

The spelling of 1297898 in words is "one million, two hundred ninety-seven thousand, eight hundred ninety-eight".