74286213 has 4 divisors (see below), whose sum is σ = 99048288. Its totient is φ = 49524140.

The previous prime is 74286167. The next prime is 74286229. The reversal of 74286213 is 31268247.

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.

It is a cyclic number.

It is not a de Polignac number, because 74286213 - 2⁸ = 74285957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74286613) 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, 12381033 + ... + 12381038.

It is an arithmetic number, because the mean of its divisors is an integer number (24762072).

Almost surely, 2^74286213 is an apocalyptic number.

It is an amenable number.

74286213 is a deficient number, since it is larger than the sum of its proper divisors (24762075).

74286213 is a wasteful number, since it uses less digits than its factorization.

74286213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24762074.

The product of its digits is 16128, while the sum is 33.

The square root of 74286213 is about 8618.9450050456. The cubic root of 74286213 is about 420.3742186276.

The spelling of 74286213 in words is "seventy-four million, two hundred eighty-six thousand, two hundred thirteen".