74992733 has 2 divisors, whose sum is σ = 74992734. Its totient is φ = 74992732.

The previous prime is 74992727. The next prime is 74992759. The reversal of 74992733 is 33729947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62047129 + 12945604 = 7877^2 + 3598^2 .

It is an emirp because it is prime and its reverse (33729947) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74992733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74992783) 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, 37496366 + 37496367.

It is an arithmetic number, because the mean of its divisors is an integer number (37496367).

Almost surely, 2^74992733 is an apocalyptic number.

It is an amenable number.

74992733 is a deficient number, since it is larger than the sum of its proper divisors (1).

74992733 is an equidigital number, since it uses as much as digits as its factorization.

74992733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 44.

The square root of 74992733 is about 8659.8344672401. The cubic root of 74992733 is about 421.7027117105.

The spelling of 74992733 in words is "seventy-four million, nine hundred ninety-two thousand, seven hundred thirty-three".