3897678 has 8 divisors (see below), whose sum is σ = 7795368. Its totient is φ = 1299224.

The previous prime is 3897671. The next prime is 3897683. The reversal of 3897678 is 8767983.

It is a sphenic number, since it is the product of 3 distinct primes.

3897678 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324801 + ... + 324812.

It is an arithmetic number, because the mean of its divisors is an integer number (974421).

Almost surely, 2^3897678 is an apocalyptic number.

3897678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3897678 is a wasteful number, since it uses less digits than its factorization.

3897678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649618.

The product of its digits is 508032, while the sum is 48.

The square root of 3897678 is about 1974.2537830786. The cubic root of 3897678 is about 157.3748464062.

The spelling of 3897678 in words is "three million, eight hundred ninety-seven thousand, six hundred seventy-eight".