3075421 has 8 divisors (see below), whose sum is σ = 3205080. Its totient is φ = 2947392.

The previous prime is 3075409. The next prime is 3075433. The reversal of 3075421 is 1245703.

It is an interprime number because it is at equal distance from previous prime (3075409) and next prime (3075433).

It can be written as a sum of positive squares in 4 ways, for example, as 236196 + 2839225 = 486^2 + 1685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3075421 - 2⁵ = 3075389 is a prime.

It is an Ulam number.

3075421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3075392 and 3075401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3075481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4711 + ... + 5323.

It is an arithmetic number, because the mean of its divisors is an integer number (400635).

Almost surely, 2^3075421 is an apocalyptic number.

It is an amenable number.

3075421 is a deficient number, since it is larger than the sum of its proper divisors (129659).

3075421 is a wasteful number, since it uses less digits than its factorization.

3075421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 3075421 is about 1753.6878285487. The cubic root of 3075421 is about 145.4235889495.

The spelling of 3075421 in words is "three million, seventy-five thousand, four hundred twenty-one".