1730997 has 16 divisors (see below), whose sum is σ = 2608960. Its totient is φ = 1134000.

The previous prime is 1730983. The next prime is 1730999. The reversal of 1730997 is 7990371.

It is not a de Polignac number, because 1730997 - 2⁸ = 1730741 is a prime.

It is a super-2 number, since 2×1730997² = 5992701228018, which contains 22 as substring.

It is a Duffinian number.

1730997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1730999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122 + ... + 2172.

It is an arithmetic number, because the mean of its divisors is an integer number (163060).

2^1730997 is an apocalyptic number.

It is an amenable number.

1730997 is a deficient number, since it is larger than the sum of its proper divisors (877963).

1730997 is a wasteful number, since it uses less digits than its factorization.

1730997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 1730997 is about 1315.6735917392. The cubic root of 1730997 is about 120.0693349312.

The spelling of 1730997 in words is "one million, seven hundred thirty thousand, nine hundred ninety-seven".