1297734 has 8 divisors (see below), whose sum is σ = 2595480. Its totient is φ = 432576.

The previous prime is 1297727. The next prime is 1297739. The reversal of 1297734 is 4377921.

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

1297734 is an admirable number.

It is a super-2 number, since 2×1297734² = 3368227069512, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1297695 and 1297704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297739) by changing a digit.

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, 108139 + ... + 108150.

It is an arithmetic number, because the mean of its divisors is an integer number (324435).

2^1297734 is an apocalyptic number.

1297734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1297734 is a wasteful number, since it uses less digits than its factorization.

1297734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216294.

The product of its digits is 10584, while the sum is 33.

The square root of 1297734 is about 1139.1812849586. The cubic root of 1297734 is about 109.0758387010.

The spelling of 1297734 in words is "one million, two hundred ninety-seven thousand, seven hundred thirty-four".