74970893 has 2 divisors, whose sum is σ = 74970894. Its totient is φ = 74970892.

The previous prime is 74970853. The next prime is 74970937. The reversal of 74970893 is 39807947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66227044 + 8743849 = 8138^2 + 2957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74970893 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 (74970853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37485446 + 37485447.

It is an arithmetic number, because the mean of its divisors is an integer number (37485447).

Almost surely, 2^74970893 is an apocalyptic number.

It is an amenable number.

74970893 is a deficient number, since it is larger than the sum of its proper divisors (1).

74970893 is an equidigital number, since it uses as much as digits as its factorization.

74970893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 74970893 is about 8658.5733813371. The cubic root of 74970893 is about 421.6617704928.

The spelling of 74970893 in words is "seventy-four million, nine hundred seventy thousand, eight hundred ninety-three".