3897408 has 56 divisors (see below), whose sum is σ = 10533888. Its totient is φ = 1271296.

The previous prime is 3897407. The next prime is 3897409. The reversal of 3897408 is 8047983.

It is an interprime number because it is at equal distance from previous prime (3897407) and next prime (3897409).

It is not an unprimeable number, because it can be changed into a prime (3897401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9985 + ... + 10367.

Almost surely, 2^3897408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3897408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5266944).

3897408 is an abundant number, since it is smaller than the sum of its proper divisors (6636480).

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

3897408 is a wasteful number, since it uses less digits than its factorization.

3897408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 3897408 is about 1974.1854016277. The cubic root of 3897408 is about 157.3712124315.

The spelling of 3897408 in words is "three million, eight hundred ninety-seven thousand, four hundred eight".