3097947 has 4 divisors (see below), whose sum is σ = 4130600. Its totient is φ = 2065296.

The previous prime is 3097921. The next prime is 3097951. The reversal of 3097947 is 7497903.

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

It is not a de Polignac number, because 3097947 - 2⁶ = 3097883 is a prime.

It is a super-2 number, since 2×3097947² = 19194551229618, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3097907) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 516322 + ... + 516327.

It is an arithmetic number, because the mean of its divisors is an integer number (1032650).

Almost surely, 2^3097947 is an apocalyptic number.

3097947 is a deficient number, since it is larger than the sum of its proper divisors (1032653).

3097947 is a wasteful number, since it uses less digits than its factorization.

3097947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032652.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 3097947 is about 1760.0985767848. The cubic root of 3097947 is about 145.7777785308. Note that the first 5 decimals are identical.

It can be divided in two parts, 309 and 7947, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 3097947 in words is "three million, ninety-seven thousand, nine hundred forty-seven".