7074421 has 4 divisors (see below), whose sum is σ = 7081452. Its totient is φ = 7067392.

The previous prime is 7074407. The next prime is 7074433. The reversal of 7074421 is 1244707.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1244707 = 593 ⋅2099.

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 3422500 = 1911^2 + 1850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7074421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7074401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (1770363).

Almost surely, 2^7074421 is an apocalyptic number.

It is an amenable number.

7074421 is a deficient number, since it is larger than the sum of its proper divisors (7031).

7074421 is a wasteful number, since it uses less digits than its factorization.

7074421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7030.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 7074421 is about 2659.7783742259. The cubic root of 7074421 is about 191.9686454152.

The spelling of 7074421 in words is "seven million, seventy-four thousand, four hundred twenty-one".