3898878 has 8 divisors (see below), whose sum is σ = 7797768. Its totient is φ = 1299624.

The previous prime is 3898871. The next prime is 3898879. The reversal of 3898878 is 8788983.

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

3898878 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 3898878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898871) 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, 324901 + ... + 324912.

It is an arithmetic number, because the mean of its divisors is an integer number (974721).

Almost surely, 2^3898878 is an apocalyptic number.

3898878 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.

3898878 is a wasteful number, since it uses less digits than its factorization.

3898878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649818.

The product of its digits is 774144, while the sum is 51.

The square root of 3898878 is about 1974.5576719863. The cubic root of 3898878 is about 157.3909953748.

The spelling of 3898878 in words is "three million, eight hundred ninety-eight thousand, eight hundred seventy-eight".