74408233 has 2 divisors, whose sum is σ = 74408234. Its totient is φ = 74408232.

The previous prime is 74408231. The next prime is 74408239. The reversal of 74408233 is 33280447.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72369049 + 2039184 = 8507^2 + 1428^2 .

It is an emirp because it is prime and its reverse (33280447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74408233 - 2¹ = 74408231 is a prime.

Together with 74408231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 74408195 and 74408204.

It is not a weakly prime, because it can be changed into another prime (74408231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37204116 + 37204117.

It is an arithmetic number, because the mean of its divisors is an integer number (37204117).

Almost surely, 2^74408233 is an apocalyptic number.

It is an amenable number.

74408233 is a deficient number, since it is larger than the sum of its proper divisors (1).

74408233 is an equidigital number, since it uses as much as digits as its factorization.

74408233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 74408233 is about 8626.0206932281. The cubic root of 74408233 is about 420.6042568409.

The spelling of 74408233 in words is "seventy-four million, four hundred eight thousand, two hundred thirty-three".