3897825 has 12 divisors (see below), whose sum is σ = 6444528. Its totient is φ = 2078800.

The previous prime is 3897823. The next prime is 3897827. The reversal of 3897825 is 5287983.

It is an interprime number because it is at equal distance from previous prime (3897823) and next prime (3897827).

It is not a de Polignac number, because 3897825 - 2¹ = 3897823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3897823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25911 + ... + 26060.

It is an arithmetic number, because the mean of its divisors is an integer number (537044).

Almost surely, 2^3897825 is an apocalyptic number.

It is an amenable number.

3897825 is a deficient number, since it is larger than the sum of its proper divisors (2546703).

3897825 is a wasteful number, since it uses less digits than its factorization.

3897825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51984 (or 51979 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 3897825 is about 1974.2910119838. The cubic root of 3897825 is about 157.3768248330.

The spelling of 3897825 in words is "three million, eight hundred ninety-seven thousand, eight hundred twenty-five".