1299898 has 8 divisors (see below), whose sum is σ = 1961280. Its totient is φ = 646140.

The previous prime is 1299887. The next prime is 1299899. The reversal of 1299898 is 8989921.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1299899) 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 3 ways as a sum of consecutive naturals, for example, 1458 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (245160).

2^1299898 is an apocalyptic number.

1299898 is a deficient number, since it is larger than the sum of its proper divisors (661382).

1299898 is a wasteful number, since it uses less digits than its factorization.

1299898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812.

The product of its digits is 93312, while the sum is 46.

The square root of 1299898 is about 1140.1306942627. The cubic root of 1299898 is about 109.1364338193.

It can be divided in two parts, 1299 and 898, that added together give a cube (2197 = 13³).

The spelling of 1299898 in words is "one million, two hundred ninety-nine thousand, eight hundred ninety-eight".