3506947 has 4 divisors (see below), whose sum is σ = 3713256. Its totient is φ = 3300640.

The previous prime is 3506939. The next prime is 3506969. The reversal of 3506947 is 7496053.

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

It is a cyclic number.

It is not a de Polignac number, because 3506947 - 2³ = 3506939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3506047) 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, 103129 + ... + 103162.

It is an arithmetic number, because the mean of its divisors is an integer number (928314).

Almost surely, 2^3506947 is an apocalyptic number.

3506947 is a deficient number, since it is larger than the sum of its proper divisors (206309).

3506947 is a wasteful number, since it uses less digits than its factorization.

3506947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206308.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 3506947 is about 1872.6844368446. The cubic root of 3506947 is about 151.9298354604.

The spelling of 3506947 in words is "three million, five hundred six thousand, nine hundred forty-seven".