74885533 has 2 divisors, whose sum is σ = 74885534. Its totient is φ = 74885532.

The previous prime is 74885483. The next prime is 74885537. The reversal of 74885533 is 33558847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72641529 + 2244004 = 8523^2 + 1498^2 .

It is a cyclic number.

It is not a de Polignac number, because 74885533 - 2⁹ = 74885021 is a prime.

It is equal to p_4387948 and since 74885533 and 4387948 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74885533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74885537) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37442766 + 37442767.

It is an arithmetic number, because the mean of its divisors is an integer number (37442767).

Almost surely, 2^74885533 is an apocalyptic number.

It is an amenable number.

74885533 is a deficient number, since it is larger than the sum of its proper divisors (1).

74885533 is an equidigital number, since it uses as much as digits as its factorization.

74885533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 43.

The square root of 74885533 is about 8653.6427589773. The cubic root of 74885533 is about 421.5016785060.

The spelling of 74885533 in words is "seventy-four million, eight hundred eighty-five thousand, five hundred thirty-three".