3478638 has 8 divisors (see below), whose sum is σ = 6957288. Its totient is φ = 1159544.

The previous prime is 3478627. The next prime is 3478661. The reversal of 3478638 is 8368743.

3478638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

3478638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3478596 and 3478605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289881 + ... + 289892.

It is an arithmetic number, because the mean of its divisors is an integer number (869661).

Almost surely, 2^3478638 is an apocalyptic number.

3478638 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.

3478638 is a wasteful number, since it uses less digits than its factorization.

3478638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579778.

The product of its digits is 96768, while the sum is 39.

The square root of 3478638 is about 1865.1107205740. The cubic root of 3478638 is about 151.5199246197.

The spelling of 3478638 in words is "three million, four hundred seventy-eight thousand, six hundred thirty-eight".