74751893 has 2 divisors, whose sum is σ = 74751894. Its totient is φ = 74751892.

The previous prime is 74751883. The next prime is 74751899. The reversal of 74751893 is 39815747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48762289 + 25989604 = 6983^2 + 5098^2 .

It is a cyclic number.

It is not a de Polignac number, because 74751893 - 2¹⁴ = 74735509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74751899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37375946 + 37375947.

It is an arithmetic number, because the mean of its divisors is an integer number (37375947).

Almost surely, 2^74751893 is an apocalyptic number.

It is an amenable number.

74751893 is a deficient number, since it is larger than the sum of its proper divisors (1).

74751893 is an equidigital number, since it uses as much as digits as its factorization.

74751893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 44.

The square root of 74751893 is about 8645.9177072188. The cubic root of 74751893 is about 421.2507932608.

The spelling of 74751893 in words is "seventy-four million, seven hundred fifty-one thousand, eight hundred ninety-three".