1745897 has 2 divisors, whose sum is σ = 1745898. Its totient is φ = 1745896.

The previous prime is 1745879. The next prime is 1745911. The reversal of 1745897 is 7985471.

Together with previous prime (1745879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008016 + 737881 = 1004^2 + 859^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745897 - 2¹⁶ = 1680361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1745197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872948 + 872949.

It is an arithmetic number, because the mean of its divisors is an integer number (872949).

2^1745897 is an apocalyptic number.

It is an amenable number.

1745897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745897 is an equidigital number, since it uses as much as digits as its factorization.

1745897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 1745897 is about 1321.3239572489. The cubic root of 1745897 is about 120.4128603313.

The spelling of 1745897 in words is "one million, seven hundred forty-five thousand, eight hundred ninety-seven".