3075921 has 16 divisors (see below), whose sum is σ = 4681600. Its totient is φ = 1994544.

The previous prime is 3075911. The next prime is 3075949. The reversal of 3075921 is 1295703.

It is not a de Polignac number, because 3075921 - 2⁶ = 3075857 is a prime.

It is a super-2 number, since 2×3075921² = 18922579996482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3075901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541 + ... + 2538.

It is an arithmetic number, because the mean of its divisors is an integer number (292600).

Almost surely, 2^3075921 is an apocalyptic number.

It is an amenable number.

3075921 is a deficient number, since it is larger than the sum of its proper divisors (1605679).

3075921 is a wasteful number, since it uses less digits than its factorization.

3075921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125 (or 3119 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3075921 is about 1753.8303794837. The cubic root of 3075921 is about 145.4314694808.

The spelling of 3075921 in words is "three million, seventy-five thousand, nine hundred twenty-one".