3897250 has 64 divisors (see below), whose sum is σ = 8895744. Its totient is φ = 1248000.

The previous prime is 3897241. The next prime is 3897259. The reversal of 3897250 is 527983.

It is an interprime number because it is at equal distance from previous prime (3897241) and next prime (3897259).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (3897259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29685 + ... + 29815.

It is an arithmetic number, because the mean of its divisors is an integer number (138996).

Almost surely, 2^3897250 is an apocalyptic number.

3897250 is an abundant number, since it is smaller than the sum of its proper divisors (4998494).

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

3897250 is a wasteful number, since it uses less digits than its factorization.

3897250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 3897250 is about 1974.1453847171. The cubic root of 3897250 is about 157.3690858055.

The spelling of 3897250 in words is "three million, eight hundred ninety-seven thousand, two hundred fifty".