1298734 has 8 divisors (see below), whose sum is σ = 1963368. Its totient is φ = 644280.

The previous prime is 1298723. The next prime is 1298747. The reversal of 1298734 is 4378921.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1298734.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2217 + ... + 2740.

It is an arithmetic number, because the mean of its divisors is an integer number (245421).

2^1298734 is an apocalyptic number.

1298734 is a deficient number, since it is larger than the sum of its proper divisors (664634).

1298734 is a wasteful number, since it uses less digits than its factorization.

1298734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090.

The product of its digits is 12096, while the sum is 34.

The square root of 1298734 is about 1139.6201121426. The cubic root of 1298734 is about 109.1038485073.

The spelling of 1298734 in words is "one million, two hundred ninety-eight thousand, seven hundred thirty-four".