3478398 has 32 divisors (see below), whose sum is σ = 8674560. Its totient is φ = 903360.

The previous prime is 3478381. The next prime is 3478411. The reversal of 3478398 is 8938743.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3303 + ... + 4226.

It is an arithmetic number, because the mean of its divisors is an integer number (271080).

Almost surely, 2^3478398 is an apocalyptic number.

3478398 is an abundant number, since it is smaller than the sum of its proper divisors (5196162).

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

3478398 is a wasteful number, since it uses less digits than its factorization.

3478398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7552.

The product of its digits is 145152, while the sum is 42.

The square root of 3478398 is about 1865.0463801203. The cubic root of 3478398 is about 151.5164399591.

The spelling of 3478398 in words is "three million, four hundred seventy-eight thousand, three hundred ninety-eight".