1297748 has 6 divisors (see below), whose sum is σ = 2271066. Its totient is φ = 648872.

The previous prime is 1297739. The next prime is 1297771. The reversal of 1297748 is 8477921.

It can be written as a sum of positive squares in only one way, i.e., 1295044 + 2704 = 1138^2 + 52^2 .

It is a super-3 number, since 3×1297748³ = 6556806382333718976, which contains 333 as substring.

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 as a sum of consecutive naturals, namely, 162215 + ... + 162222.

It is an arithmetic number, because the mean of its divisors is an integer number (378511).

2^1297748 is an apocalyptic number.

It is an amenable number.

1297748 is a deficient number, since it is larger than the sum of its proper divisors (973318).

1297748 is a wasteful number, since it uses less digits than its factorization.

1297748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324441 (or 324439 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 1297748 is about 1139.1874297059. The cubic root of 1297748 is about 109.0762309376.

The spelling of 1297748 in words is "one million, two hundred ninety-seven thousand, seven hundred forty-eight".