74020213 has 2 divisors, whose sum is σ = 74020214. Its totient is φ = 74020212.

The previous prime is 74020207. The next prime is 74020223. The reversal of 74020213 is 31202047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41049649 + 32970564 = 6407^2 + 5742^2 .

It is a cyclic number.

It is not a de Polignac number, because 74020213 - 2¹³ = 74012021 is a prime.

It is the 8604-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74020223) by changing a digit.

It is a nontrivial repunit in base 8603.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37010106 + 37010107.

It is an arithmetic number, because the mean of its divisors is an integer number (37010107).

Almost surely, 2^74020213 is an apocalyptic number.

It is an amenable number.

74020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

74020213 is an equidigital number, since it uses as much as digits as its factorization.

74020213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 74020213 is about 8603.5000435869. The cubic root of 74020213 is about 419.8718675652.

The spelling of 74020213 in words is "seventy-four million, twenty thousand, two hundred thirteen".