3096921 has 4 divisors (see below), whose sum is σ = 4129232. Its totient is φ = 2064612.

The previous prime is 3096917. The next prime is 3096959. The reversal of 3096921 is 1296903.

3096921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1296903 = 3 ⋅432301.

It is not a de Polignac number, because 3096921 - 2² = 3096917 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

3096921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3096911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516151 + ... + 516156.

It is an arithmetic number, because the mean of its divisors is an integer number (1032308).

Almost surely, 2^3096921 is an apocalyptic number.

It is an amenable number.

3096921 is a deficient number, since it is larger than the sum of its proper divisors (1032311).

3096921 is a wasteful number, since it uses less digits than its factorization.

3096921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032310.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 3096921 is about 1759.8070917007. The cubic root of 3096921 is about 145.7616835153.

The spelling of 3096921 in words is "three million, ninety-six thousand, nine hundred twenty-one".