3897380 has 12 divisors (see below), whose sum is σ = 8184540. Its totient is φ = 1558944.

The previous prime is 3897359. The next prime is 3897389. The reversal of 3897380 is 837983.

3897380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2696164 + 1201216 = 1642^2 + 1096^2 .

It is not an unprimeable number, because it can be changed into a prime (3897389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97415 + ... + 97454.

It is an arithmetic number, because the mean of its divisors is an integer number (682045).

Almost surely, 2^3897380 is an apocalyptic number.

It is an amenable number.

3897380 is an abundant number, since it is smaller than the sum of its proper divisors (4287160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3897380 is a wasteful number, since it uses less digits than its factorization.

3897380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194878 (or 194876 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 3897380 is about 1974.1783100825. The cubic root of 3897380 is about 157.3708355653.

The spelling of 3897380 in words is "three million, eight hundred ninety-seven thousand, three hundred eighty".