1897025 has 18 divisors (see below), whose sum is σ = 2552850. Its totient is φ = 1397760.

The previous prime is 1897009. The next prime is 1897037. The reversal of 1897025 is 5207981.

1897025 = T₃₇₇ + T₃₇₈ + ... + T₄₀₁.

It can be written as a sum of positive squares in 9 ways, for example, as 1106704 + 790321 = 1052^2 + 889^2 .

It is not a de Polignac number, because 1897025 - 2⁴ = 1897009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1896982 and 1897000.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4001 + ... + 4449.

It is an arithmetic number, because the mean of its divisors is an integer number (141825).

2^1897025 is an apocalyptic number.

It is an amenable number.

1897025 is a deficient number, since it is larger than the sum of its proper divisors (655825).

1897025 is a wasteful number, since it uses less digits than its factorization.

1897025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1897025 is about 1377.3253065271. The cubic root of 1897025 is about 123.7915549319.

The spelling of 1897025 in words is "one million, eight hundred ninety-seven thousand, twenty-five".