1705725 has 72 divisors (see below), whose sum is σ = 3779520. Its totient is φ = 738720.

The previous prime is 1705721. The next prime is 1705747. The reversal of 1705725 is 5275071.

It is not a de Polignac number, because 1705725 - 2² = 1705721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1705725 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1705721) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 89766 + ... + 89784.

2^1705725 is an apocalyptic number.

1705725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1705725 is an abundant number, since it is smaller than the sum of its proper divisors (2073795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1705725 is a wasteful number, since it uses less digits than its factorization.

1705725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 1705725 is about 1306.0340730624. The cubic root of 1705725 is about 119.4821434194.

The spelling of 1705725 in words is "one million, seven hundred five thousand, seven hundred twenty-five".