1729625 has 16 divisors (see below), whose sum is σ = 2195856. Its totient is φ = 1360000.

The previous prime is 1729621. The next prime is 1729633. The reversal of 1729625 is 5269271.

It can be written as a sum of positive squares in 8 ways, for example, as 121801 + 1607824 = 349^2 + 1268^2 .

It is not a de Polignac number, because 1729625 - 2² = 1729621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1729591 and 1729600.

It is not an unprimeable number, because it can be changed into a prime (1729621) 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, 12557 + ... + 12693.

It is an arithmetic number, because the mean of its divisors is an integer number (137241).

2^1729625 is an apocalyptic number.

It is an amenable number.

1729625 is a deficient number, since it is larger than the sum of its proper divisors (466231).

1729625 is a wasteful number, since it uses less digits than its factorization.

1729625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 243 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 1729625 is about 1315.1520824604. The cubic root of 1729625 is about 120.0376039557.

The spelling of 1729625 in words is "one million, seven hundred twenty-nine thousand, six hundred twenty-five".