3398978 has 16 divisors (see below), whose sum is σ = 5692896. Its totient is φ = 1508640.

The previous prime is 3398971. The next prime is 3398987. The reversal of 3398978 is 8798933.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3398971) 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, 851 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (355806).

Almost surely, 2^3398978 is an apocalyptic number.

3398978 is a deficient number, since it is larger than the sum of its proper divisors (2293918).

3398978 is a wasteful number, since it uses less digits than its factorization.

3398978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649.

The product of its digits is 326592, while the sum is 47.

The square root of 3398978 is about 1843.6317419702. The cubic root of 3398978 is about 150.3543916805.

The spelling of 3398978 in words is "three million, three hundred ninety-eight thousand, nine hundred seventy-eight".