74362993 has 2 divisors, whose sum is σ = 74362994. Its totient is φ = 74362992.

The previous prime is 74362973. The next prime is 74362999. The reversal of 74362993 is 39926347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56655729 + 17707264 = 7527^2 + 4208^2 .

It is an emirp because it is prime and its reverse (39926347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74362993 - 2⁹ = 74362481 is a prime.

It is not a weakly prime, because it can be changed into another prime (74362999) 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, 37181496 + 37181497.

It is an arithmetic number, because the mean of its divisors is an integer number (37181497).

Almost surely, 2^74362993 is an apocalyptic number.

It is an amenable number.

74362993 is a deficient number, since it is larger than the sum of its proper divisors (1).

74362993 is an equidigital number, since it uses as much as digits as its factorization.

74362993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 74362993 is about 8623.3979961498. The cubic root of 74362993 is about 420.5189974842.

It can be divided in two parts, 743 and 62993, that added together give a palindrome (63736).

The spelling of 74362993 in words is "seventy-four million, three hundred sixty-two thousand, nine hundred ninety-three".