3977047 has 4 divisors (see below), whose sum is σ = 3986136. Its totient is φ = 3967960.

The previous prime is 3977011. The next prime is 3977059. The reversal of 3977047 is 7407793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7407793 = 97 ⋅76369.

It is a cyclic number.

It is not a de Polignac number, because 3977047 - 2¹⁹ = 3452759 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3976997 and 3977015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977087) 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, 3853 + ... + 4774.

It is an arithmetic number, because the mean of its divisors is an integer number (996534).

Almost surely, 2^3977047 is an apocalyptic number.

3977047 is a deficient number, since it is larger than the sum of its proper divisors (9089).

3977047 is an equidigital number, since it uses as much as digits as its factorization.

3977047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 3977047 is about 1994.2534944184. The cubic root of 3977047 is about 158.4358924335.

The spelling of 3977047 in words is "three million, nine hundred seventy-seven thousand, forty-seven".