3897245 has 16 divisors (see below), whose sum is σ = 5192640. Its totient is φ = 2784000.

The previous prime is 3897241. The next prime is 3897259. The reversal of 3897245 is 5427983.

It is not a de Polignac number, because 3897245 - 2² = 3897241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3897199 and 3897208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897241) 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, 2645 + ... + 3845.

It is an arithmetic number, because the mean of its divisors is an integer number (324540).

Almost surely, 2^3897245 is an apocalyptic number.

It is an amenable number.

3897245 is a deficient number, since it is larger than the sum of its proper divisors (1295395).

3897245 is a wasteful number, since it uses less digits than its factorization.

3897245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276.

The product of its digits is 60480, while the sum is 38.

The square root of 3897245 is about 1974.1441183460. The cubic root of 3897245 is about 157.3690185063.

The spelling of 3897245 in words is "three million, eight hundred ninety-seven thousand, two hundred forty-five".