74382773 has 2 divisors, whose sum is σ = 74382774. Its totient is φ = 74382772.

The previous prime is 74382761. The next prime is 74382787. The reversal of 74382773 is 37728347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58874929 + 15507844 = 7673^2 + 3938^2 .

It is an emirp because it is prime and its reverse (37728347) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74382773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74382773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74382703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37191386 + 37191387.

It is an arithmetic number, because the mean of its divisors is an integer number (37191387).

Almost surely, 2^74382773 is an apocalyptic number.

It is an amenable number.

74382773 is a deficient number, since it is larger than the sum of its proper divisors (1).

74382773 is an equidigital number, since it uses as much as digits as its factorization.

74382773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 41.

The square root of 74382773 is about 8624.5447995822. The cubic root of 74382773 is about 420.5562791483.

The spelling of 74382773 in words is "seventy-four million, three hundred eighty-two thousand, seven hundred seventy-three".