3097945 has 4 divisors (see below), whose sum is σ = 3717540. Its totient is φ = 2478352.

The previous prime is 3097921. The next prime is 3097951. The reversal of 3097945 is 5497903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5497903 = 631 ⋅8713.

It can be written as a sum of positive squares in 2 ways, for example, as 2286144 + 811801 = 1512^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 3097945 - 2¹³ = 3089753 is a prime.

It is a d-powerful number, because it can be written as 3 + 0 + 9² + 7⁷ + 9⁵ + 4⁹ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309790 + ... + 309799.

It is an arithmetic number, because the mean of its divisors is an integer number (929385).

Almost surely, 2^3097945 is an apocalyptic number.

It is an amenable number.

3097945 is a deficient number, since it is larger than the sum of its proper divisors (619595).

3097945 is an equidigital number, since it uses as much as digits as its factorization.

3097945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619594.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 3097945 is about 1760.0980086347. The cubic root of 3097945 is about 145.7777471600. Note that the first 4 decimals are identical.

The spelling of 3097945 in words is "three million, ninety-seven thousand, nine hundred forty-five".