3897270 has 48 divisors (see below), whose sum is σ = 10915632. Its totient is φ = 959040.

The previous prime is 3897269. The next prime is 3897331. The reversal of 3897270 is 727983.

3897270 is a `hidden beast` number, since 389 + 7 + 270 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 496 + ... + 2835.

It is an arithmetic number, because the mean of its divisors is an integer number (227409).

Almost surely, 2^3897270 is an apocalyptic number.

3897270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3897270 is an abundant number, since it is smaller than the sum of its proper divisors (7018362).

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

3897270 is a wasteful number, since it uses less digits than its factorization.

3897270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357 (or 3354 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 3897270 is about 1974.1504501937. The cubic root of 3897270 is about 157.3693550019.

The spelling of 3897270 in words is "three million, eight hundred ninety-seven thousand, two hundred seventy".