74260993 has 2 divisors, whose sum is σ = 74260994. Its totient is φ = 74260992.

The previous prime is 74260931. The next prime is 74261021. The reversal of 74260993 is 39906247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70845889 + 3415104 = 8417^2 + 1848^2 .

It is an emirp because it is prime and its reverse (39906247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74260993 - 2⁹ = 74260481 is a prime.

It is not a weakly prime, because it can be changed into another prime (74260093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37130496 + 37130497.

It is an arithmetic number, because the mean of its divisors is an integer number (37130497).

Almost surely, 2^74260993 is an apocalyptic number.

It is an amenable number.

74260993 is a deficient number, since it is larger than the sum of its proper divisors (1).

74260993 is an equidigital number, since it uses as much as digits as its factorization.

74260993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 74260993 is about 8617.4818247560. The cubic root of 74260993 is about 420.3266412133.

The spelling of 74260993 in words is "seventy-four million, two hundred sixty thousand, nine hundred ninety-three".