1397307 has 8 divisors (see below), whose sum is σ = 1927440. Its totient is φ = 899360.

The previous prime is 1397303. The next prime is 1397311. The reversal of 1397307 is 7037931.

It is an interprime number because it is at equal distance from previous prime (1397303) and next prime (1397311).

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

It is a cyclic number.

It is not a de Polignac number, because 1397307 - 2² = 1397303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1397303) 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 7 ways as a sum of consecutive naturals, for example, 7944 + ... + 8117.

It is an arithmetic number, because the mean of its divisors is an integer number (240930).

2^1397307 is an apocalyptic number.

1397307 is a deficient number, since it is larger than the sum of its proper divisors (530133).

1397307 is a wasteful number, since it uses less digits than its factorization.

1397307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16093.

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

The square root of 1397307 is about 1182.0774086328. The cubic root of 1397307 is about 111.7971188973.

The spelling of 1397307 in words is "one million, three hundred ninety-seven thousand, three hundred seven".