1299798 has 12 divisors (see below), whose sum is σ = 2816268. Its totient is φ = 433260.

The previous prime is 1299791. The next prime is 1299811. The reversal of 1299798 is 8979921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36088 + ... + 36123.

It is an arithmetic number, because the mean of its divisors is an integer number (234689).

2^1299798 is an apocalyptic number.

1299798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1299798 is an abundant number, since it is smaller than the sum of its proper divisors (1516470).

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

1299798 is a wasteful number, since it uses less digits than its factorization.

1299798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72219 (or 72216 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 1299798 is about 1140.0868387978. The cubic root of 1299798 is about 109.1336351579.

The spelling of 1299798 in words is "one million, two hundred ninety-nine thousand, seven hundred ninety-eight".