3491678 has 4 divisors (see below), whose sum is σ = 5237520. Its totient is φ = 1745838.

The previous prime is 3491669. The next prime is 3491689. The reversal of 3491678 is 8761943.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 872918 + ... + 872921.

It is an arithmetic number, because the mean of its divisors is an integer number (1309380).

Almost surely, 2^3491678 is an apocalyptic number.

3491678 is a deficient number, since it is larger than the sum of its proper divisors (1745842).

3491678 is a wasteful number, since it uses less digits than its factorization.

3491678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745841.

The product of its digits is 36288, while the sum is 38.

The square root of 3491678 is about 1868.6032216605. The cubic root of 3491678 is about 151.7090174100.

The spelling of 3491678 in words is "three million, four hundred ninety-one thousand, six hundred seventy-eight".