1730397 has 8 divisors (see below), whose sum is σ = 2350944. Its totient is φ = 1131728.

The previous prime is 1730371. The next prime is 1730429. The reversal of 1730397 is 7930371.

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 1730397 - 2¹⁰ = 1729373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1730317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5283 + ... + 5600.

It is an arithmetic number, because the mean of its divisors is an integer number (293868).

2^1730397 is an apocalyptic number.

It is an amenable number.

1730397 is a deficient number, since it is larger than the sum of its proper divisors (620547).

1730397 is a wasteful number, since it uses less digits than its factorization.

1730397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939.

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

The square root of 1730397 is about 1315.4455518949. The cubic root of 1730397 is about 120.0554604750.

The spelling of 1730397 in words is "one million, seven hundred thirty thousand, three hundred ninety-seven".