7874213 has 4 divisors (see below), whose sum is σ = 8337420. Its totient is φ = 7411008.

The previous prime is 7874201. The next prime is 7874219. The reversal of 7874213 is 3124787.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5207524 + 2666689 = 2282^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 7874213 - 2⁶ = 7874149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7874213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7874219) 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, 231578 + ... + 231611.

It is an arithmetic number, because the mean of its divisors is an integer number (2084355).

Almost surely, 2^7874213 is an apocalyptic number.

It is an amenable number.

7874213 is a deficient number, since it is larger than the sum of its proper divisors (463207).

7874213 is a wasteful number, since it uses less digits than its factorization.

7874213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463206.

The product of its digits is 9408, while the sum is 32.

The square root of 7874213 is about 2806.1028135120. The cubic root of 7874213 is about 198.9462326227.

The spelling of 7874213 in words is "seven million, eight hundred seventy-four thousand, two hundred thirteen".