3895945 has 4 divisors (see below), whose sum is σ = 4675140. Its totient is φ = 3116752.

The previous prime is 3895921. The next prime is 3895949. The reversal of 3895945 is 5495983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2013561 + 1882384 = 1419^2 + 1372^2 .

It is a cyclic number.

It is not a de Polignac number, because 3895945 - 2⁹ = 3895433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3895949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389590 + ... + 389599.

It is an arithmetic number, because the mean of its divisors is an integer number (1168785).

Almost surely, 2^3895945 is an apocalyptic number.

It is an amenable number.

3895945 is a deficient number, since it is larger than the sum of its proper divisors (779195).

3895945 is an equidigital number, since it uses as much as digits as its factorization.

3895945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779194.

The product of its digits is 194400, while the sum is 43.

The square root of 3895945 is about 1973.8148342740. The cubic root of 3895945 is about 157.3515187532.

The spelling of 3895945 in words is "three million, eight hundred ninety-five thousand, nine hundred forty-five".