1307397 has 16 divisors (see below), whose sum is σ = 2145920. Its totient is φ = 689472.

The previous prime is 1307393. The next prime is 1307417. The reversal of 1307397 is 7937031.

It is not a de Polignac number, because 1307397 - 2² = 1307393 is a prime.

It is an Ulam number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307393) 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 15 ways as a sum of consecutive naturals, for example, 2122 + ... + 2667.

It is an arithmetic number, because the mean of its divisors is an integer number (134120).

2^1307397 is an apocalyptic number.

It is an amenable number.

1307397 is a deficient number, since it is larger than the sum of its proper divisors (838523).

1307397 is a wasteful number, since it uses less digits than its factorization.

1307397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 1307397 is about 1143.4146229605. The cubic root of 1307397 is about 109.3458977811.

The spelling of 1307397 in words is "one million, three hundred seven thousand, three hundred ninety-seven".