3897530 has 32 divisors (see below), whose sum is σ = 8636544. Its totient is φ = 1233216.

The previous prime is 3897521. The next prime is 3897559. The reversal of 3897530 is 357983.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1232 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (269892).

Almost surely, 2^3897530 is an apocalyptic number.

3897530 is an abundant number, since it is smaller than the sum of its proper divisors (4739014).

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

3897530 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (3897529) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (4310).

3897530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 3897530 is about 1974.2163002062. The cubic root of 3897530 is about 157.3728544705.

The spelling of 3897530 in words is "three million, eight hundred ninety-seven thousand, five hundred thirty".