3906047 has 4 divisors (see below), whose sum is σ = 3979800. Its totient is φ = 3832296.

The previous prime is 3906043. The next prime is 3906059. The reversal of 3906047 is 7406093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7406093 = 59 ⋅125527.

It is a cyclic number.

It is not a de Polignac number, because 3906047 - 2² = 3906043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36797 + ... + 36902.

It is an arithmetic number, because the mean of its divisors is an integer number (994950).

Almost surely, 2^3906047 is an apocalyptic number.

3906047 is a deficient number, since it is larger than the sum of its proper divisors (73753).

3906047 is an equidigital number, since it uses as much as digits as its factorization.

3906047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73752.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 3906047 is about 1976.3721815488. The cubic root of 3906047 is about 157.4874030406.

The spelling of 3906047 in words is "three million, nine hundred six thousand, forty-seven".